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Questions tagged [safety]

Safety includes all aspects of protecting aircraft, passengers and crew from accidents, mistakes and other potentially dangerous situations.

7
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2answers
307 views

Has there ever been an uncommanded lowering of landing gear?

Has there ever been an uncommanded lowering of the landing gear on a large commercial jet? I could not find any instance of it in a preliminary google search. Could a simple short-circuit cause such a ...
2
votes
0answers
175 views

Are there any countermeasures for lasers or the people who use them to blind pilots? [duplicate]

Yesterday there has been another laser-incident at my local airport LOWG. The laser hit the cockpit twice, but the pilot managed to land the Dash 8 Q400 safely. I'm taking this recent event as ...
0
votes
4answers
267 views

What should I expect to happen when I get on a skydiving flight

I am schedule to go on a short flight (skydive)* on a Cessna 208B Grand Caravan during an international visit to some friends. I found the serial number of the flight, here is it's record. Since ...
1
vote
3answers
382 views

Are there any safety data on the aircraft used for skydiving?

I am planning a (first) skydive, a tandem jump with an instructor. However, I have not picked which school I will use yet. I am convinced about the safety of the jump itself, but cannot find reliable ...
2
votes
1answer
195 views

Why does “airplane mode” turn off Bluetooth and WLAN if I can just turn them on again? [closed]

On my (Android) phone, enabling airplane mode automatically disables all wireless antennas except for GPS and NFC (I assume the latter is either passive or way too low power for anyone to care about). ...
4
votes
1answer
225 views

Is “laze” (lava + haze) as hazardous as volcanic ash to turbo engines?

Reading an article about Pahoa, I read that erupting Hawaiian volcanoes produce a combination of lava and haze - resulting in clouds that contain hydrochloric acid. Are these as dangerous as ...
3
votes
2answers
370 views

Missing shear pin for tow-bar / front landing gear

Sitting on the runway about to takeoff, and the captain comes over the intercom saying that we need to return to the gate. From the quick announcement, it sounded like he said they found a 'shear pin'...
16
votes
3answers
3k views

Why ground a plane while fueling?

Why does a plane need to be grounded while fueling, but we never ground our cars? Does the potential for a spark magically exist for an airborne vehicle but not for an earth bound one?
3
votes
1answer
153 views

How frequently are avionics on large commercial aircraft updated?

How frequently are avionics on large commercial aircraft updated? And how are the systems updated?
10
votes
2answers
1k views

Are there any data on the safety rate of gliders vs single-engine GA aircraft?

Can anyone point me to statistics on the safety record of gliders vs. single engine general aviation aircraft?
2
votes
2answers
235 views

What is the relationship between the terms “airprox” and “near mid-air collision”?

Do the terms "Airprox" and "Near mid-air collision" mean the same? If not what is the difference between them?
24
votes
5answers
3k views

Why are accident rates higher on smaller aircraft?

This question was raised as part of this discussion. Why are accident rates higher on smaller aircraft? It seems the safety record of military, private and small commuter planes is much less safe ...
8
votes
4answers
3k views

Is this statistic about the fatal accident rate correct?

This link says that: fatal accidents occurred once every 200,000 flights in the 50s and 60s. Now, fatal accidents only occur once every two million flights While many sources, including this one, ...
6
votes
1answer
420 views

Was the safe landing of Southwest flight 1380 extraordinary or expected?

I've been reading with great interest and concern about the recent Southwest flight that resulted in the first fatality in that airline's history. There's one question I haven't seen answered, though:...
4
votes
0answers
102 views

Could airliners have cameras to let the pilots see the engines and wings? [duplicate]

Why can't jet airliners have a camera installed on the fuselage and a monitor in the cockpit so that pilots can see engines and wings which are normally behind them and hidden from view? Something ...
30
votes
7answers
19k views

Why don't 747s use unreliable, but cheap, jet engines instead?

I'm a neophyte who was reading a little bit about jet engines, and the economics behind them. In particular, I was curious about what makes jet engines so expensive compared to piston engines. A ...
0
votes
2answers
244 views

How close are planes allowed to fly next to each other?

I have a question - how close are planes allowed to fly when their paths are about to cross? I am sure there are proximity warnings and what not but I also know those accidents happen, even if not ...
7
votes
1answer
386 views

How is Kool-Aid used as a visual cue to create contrast for an off-airport landing?

In part 7-5-13 of the AIM, there is quite peculiar guidance given: g. Off-Airport Landings. In the event of an off-airport landing, pilots have used a number of different visual cues to ...
3
votes
1answer
428 views

Why is the Departure leg of the traffic pattern being mistaught as Upwind?

I hear a LOT of newer pilots and CFI's erroneously referring to the Departure leg of the traffic pattern as the Upwind. Ref. A.I.M. Sec 4-3-2. Actually had a Tower controller tell me "I'll call your ...
3
votes
1answer
936 views

How common and dangerous are fume events?

I’ve been hearing about fume events where engine oil containing tricresyl phosphate as an additive can leak onto the HVAC packs and enter cabin air. These organophosphate are incredibly toxic and are ...
7
votes
2answers
783 views

Can a pilot still land if the tower gives confusing Information? [closed]

Recently an airplane crashed at Kathmandu airport in Nepal. The people that owned that plane claim that confusing information was given to the pilot by the control tower, and as a result the plane ...
0
votes
1answer
259 views

Is a pilot responsible for CTAF announcements in this scenario? [closed]

A Cessna 525 Citation Jet is coming in to land and a single-engine Cessna 150 is taking off at a small airport with no ATC. The Cessna 150 stays in continued radio contact and the Cessna 525 Citation ...
0
votes
1answer
142 views

What is the EASA equivalent of the FAA's 91.517?

What is the EASA equivalent of the US 91.517 regulations (on passenger information)?
1
vote
1answer
291 views

What's going on with sudden acceleration/deceleration in mid-air?

I was recently on a flight between LGB and PHX. I've been flying since I was 5, am now 31. After takeoff, as the plane approached cruising altitude, the plane slowed down. A lot. Then accelerated ...
7
votes
2answers
411 views

How do aisle lights show the direction to exits?

Lights in the aisle will guide you towards an exit. I've sat through a lot of safety briefings (for commercial scheduled passenger flights) and always found this sentence especially uninformative. ...
6
votes
1answer
471 views

Are the vortex generators on the Cessna Caravan necessary and sufficient for safety of flight?

I've been doing some reading about the C208B (Cessna Caravan) in prep for my new job flying cargo; I came across this article which (as far as I can tell) is a transcription of litigation surrounding ...
3
votes
1answer
264 views

Can aircraft depart/arrive after another aircraft has sprayed snow on the runway?

Does snow spray affect runway surface friction? The weather was bitterly cold on March 18th, 2018 and Birmingham airport was covered with snow. As you can see in this video, an A380 sprays snow on the ...
4
votes
1answer
285 views

Why disable stall warning based only on low airspeed, rather than multiple criteria?

One of the factors that potentially contributed to the Air France 447 crash is that the stall warning was disabled when the airspeed fell below 60 knots. I understand why this is -- you don't want to ...
25
votes
2answers
6k views

Is it illegal to partially block the aisle on a passenger airliner?

After reading all the commotion about the dog that died after its carrier was placed in the overhead bin I wondered- is it against any FAA regulations to allow a flight to take off with a partially ...
2
votes
1answer
186 views

What is the purpose of long endurance test flights?

Well known is the last long endurance test flight by a Boeing B787-8, which drew its shape in the air for 18 hours while on a long endurance test flight: https://www.wired.com/story/boeing-787-8-...
9
votes
1answer
518 views

What are the regulations regarding the safety briefings and harness designs for open-door helicopters?

I'm reading about a helicopter crash that happened yesterday in New York City. The helicopter landed in the East River and apparently inverted. The pilot was able to escape, but all five passengers ...
-3
votes
2answers
256 views

Does a 40 years clean crashes sheet of airliner makes people fear to fly with them because there is bigger pressure on the company? [closed]

I am planning for my 2nd flight. The first flight was in November 2017 from Beirut to Istanbul which took 1h45min. I asked this question on this site, explaining my Phobia to professionals on the ...
2
votes
2answers
421 views

Is the Airbus Beluga's safety record comparable with the record of other Airbuses?

Upon first sight, to the uneducated eye, the Airbus Beluga looks incredibly 'un-aerodynamic'. Is the Beluga just as safe as other Airbus models?
8
votes
2answers
1k views

What other circumstances may cause the autopilot to trip out?

I recently watched Air Crash Investigation, Air France Flight 447. The autopilot handed back control to the flight deck after the pitot tubes temporarily froze. The autopilot knew it was getting ...
0
votes
0answers
118 views

Where can I find information about the safety record of Westwind Air Service in Arizona?

I've been trying to find out how safe Westwind Air Service is. I know that there was a crash in Canada, but I think it's a different Westwind. I know that it's a flight school but how well maintained ...
31
votes
4answers
7k views

How hazardous is it if an engine cowl falls off?

There was recently an incident where the engine cowl of the starboard engine of a United Airline's Boeing 777 fell off during flight: 'Scariest Flight of My Life.' United Airlines Made an Emergency ...
9
votes
1answer
510 views

Why can the aircraft not turn on pitot heaters itself?

There have already been some posts about pitot heaters: when to turn them on/off, why not leave them on etc. I don't want to go over that. I am an engineer, so I'd like to ask: if the flight ...
18
votes
6answers
7k views

Would a slower speed and lower altitude reduce fatal incidents?

If it became plausible to fly commercial aircraft much lower in the future (due to developments in technology and airway regulations permitting it), say at a standard height of 5,000ft, but with a ...
3
votes
1answer
133 views

Are new airliners less safe than older the two first years after they are marketed?

Looking at the 2014 Allianz Global Aviation Safety Study for airliners: The last generation of aircraft (1974 and forward, including A320 and B737) have a very low rate of accidents: less than 2 ...
-7
votes
1answer
181 views

Is it possible to create a specific crash site at every airport? [closed]

I have found the need to bring to your attention the possibility of creating various crush sites and the various airports for any unpredictable events that could possibly lead to a crush. I believe ...
43
votes
6answers
8k views

Is a weak battery a valid reason to reject a rented aircraft?

Today I had rented a Piper Archer III for a local flight. After taxing to the fuel and filling up, I went to start the plane again and it did not want to turn over. This particular plane is somewhat ...
19
votes
2answers
4k views

Why must some 'dangerous items' be in check-in baggage?

What is the rationale behind forcing passengers to check in dangerous items? What makes liquids and gels more dangerous in the cabin? Why would a lithium ion battery be less dangerous as check-in ...
10
votes
1answer
2k views

What Caused the Engine-Failure of Southwest Airlines Flight WN-3472?

What caused the damage on Southwest Airlines Flight WN-3472? The inlet section of the engine is missing but the fan and nose-cone are still visible. Pictures taken during flight even seem to show ...
6
votes
1answer
172 views

Does a glider pilot with a PC canopy need to protect himself from UV radiation?

I and several of my glider pilot friends are developing skin cancers. I am looking for information about the risk. Canopy tints or polymer types that provide protection would be important to know.
2
votes
0answers
76 views

What is a possible reason for an L-1011 wing fuel tank overflow? [duplicate]

I was on a TWA Charter flight from Boston to Montego Bay Jamaica in 1989. During pushback from the gate, the right wing began to leak jetfuel (like gallons pouring out of the wing). They stopped the ...
33
votes
4answers
8k views

How dangerous was this approach of a Dash8 Q400 really?

There is a video going viral here of a Dash8 landing during a recent media hyped storm: According to the description and imagery it is a Dash8 Q400 (registration D-...
9
votes
2answers
4k views

Which airplane types never crashed? [closed]

Is there an airplane that never crashed? Or more specifically, without any crash history on any database. By crash, let's say any accident / incident which resulted in damage to the airplane and/or ...
0
votes
2answers
397 views

What noises are considered worrying on a passenger flight?

As a typical 'nervous flyer', I often find myself asking crew about a noise that they say is completely normal during flights. The thing is, I've flown a lot and still hear new sounds sometimes! For ...
1
vote
0answers
58 views

Do any regulatory bodies require ISO 9001 QMS certification from airlines or service providers?

As the aviation industry is transitioning to SMS approach, is having ISO 9001 certification required from any civil aviation authority? Similar to how IATA requires IOSA certification and certain ...
12
votes
3answers
2k views

Why did my business class seat have a three point shoulder harness?

I recently rode a short haul international flight on Asiana Airlines AAR111 from KIX to ICN. I was surprised that my business class seat had a three-point shoulder harness given that we’ve discussed ...