Cessna 441 N832AD
24 August 1996 · Phoenix, Arizona, United States · No injuries
Summary
On 24 August 1996 at about 17:50 local time, a Cessna 441 registered N832AD, operated by Donald A. Fehrenbach, was involved in an accident near Phoenix, Arizona, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 17:50
- Classification
- Accident
- Location
- Phoenix, Arizona, United States
- Coordinates
- 33.4298, -112.0097
- Aircraft
- Cessna 441
- Registration
- N832AD
- Category
- Airplane
- Engines
- 2
- Operator
- Donald A. Fehrenbach
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Ozark → Chandler
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX96FA317
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
blockage of the fuel vent system due to mud from wasp nest(s). Inadequate maintenance was a related factor.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
At flight level 240, the pilot noticed that the wing deice boots were fully inflated, though he had not activated the boots. He consulted the pilot operator handbook, but was unable to cycle the boots. During descent about 5,000 feet msl, there was a loud bang along with a jolt. The pilot noticed that the right wing had imploded or caved in. He also noted that aileron control had been affected. He declared an emergency, was vectored to the nearest airport, and landed without further incident. Postaccident examination of the aircraft revealed: the engine bleed air control valve overboard lines were both plugged with mud about 18 inches up inside from the overboard opening; and both NACA underwing fuel vents were found plugged with mud about 36 inches from the underwing opening. The mud was from wasp nests. There were secondary fuel vents in the fuel filler caps. The right fuel cap vent was 50 percent restricted from a recent wing repaint. Both fuel cap flutter valves were defective. The aircraft had been parked outside for 30 days.
Quoted verbatim from the NTSB record.
Other Cessna 441 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 15 May 1995 | Cessna 441 | Bayrouth, Germany | Thunderskies Inc. Trustee | No injuries | - |
| 2 Jan 1997 | Cessna 441 | Lakeland, Florida, United States | Executive Wings | Minor injuries | - |
| 9 Mar 1997 | Cessna 441 | Madison, Mississippi, United States | - | No injuries | - |
| 1 Jul 1994 | Cessna 441 | Flint, Michigan, United States | - | No injuries | - |
| 10 Aug 1992 | Cessna 441 | Gainesville, Georgia, United States | Air Travel Services, Inc. | Serious injuries | - |
| 13 Feb 2001 | Cessna 441 | Englewood, Colorado, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 7 Oct 1996 | Cessna 172C | Mesa, Arizona, United States | - | No injuries | - |
| 15 Oct 1996 | Aero Commander 690 | Phoenix, Arizona, United States | Sun West Aviation | No injuries | - |
| 17 Oct 1996 | McDonnell Douglas 369E | Mesa, Arizona, United States | MD Helicopter Systems | Minor injuries | - |
| 3 Apr 1996 | Naval Aircraft Factory N3N-3 | Chandler, Arizona, United States | - | No injuries | - |
| 6 Apr 1996 | Cessna 172 | Sedona, Arizona, United States | - | No injuries | - |
| 30 Oct 1996 | Leibert BD-5B | Phoenix, Arizona, United States | - | Serious injuries | - |