Cessna 402B N5780M
6 February 1985 · Altus, Oklahoma, United States · Fatal
Summary
On 6 February 1985 at about 15:43 local time, a Cessna 402B registered N5780M, operated by Altus Airline, Inc., was involved in an accident near Altus, Oklahoma, United States. 2 people were on board and 2 died. The aircraft was destroyed. No probable cause statement is available for this record.
The record
- Date
- at 15:43
- Classification
- Accident
- Location
- Altus, Oklahoma, United States
- Nearest airport
- Altus Afb (LTS)
- Coordinates
- 34.6393, -99.3108
- Aircraft
- Cessna 402B
- Registration
- N5780M
- Category
- Airplane
- Engines
- 2
- Operator
- Altus Airline, Inc.
- Operating rule
- Part 135: Air Taxi & Commuter
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Altus → Oklahoma City
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- FTW85FA112
People
2 people died.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 2 | 0 | 0 | 0 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
DURING AN ENG START, PRIOR TO THE FLT, THE L ENG BACKFIRED 2 OR 3 TIMES. A WITNESS DESCRIBED THE 1ST BACKFIRED AS 'THE LOUDEST I HAVE EVER HEARD.' WHEN THE ACFT TOOK OFF, TWO PERSONS LIVING NEAR THE DEPARTURE END OF THE RWY NOTED THAT THE ACFT (BELIEVED TO BE THE SAME) SOUNDED DIFFERENT & HAD A 'CLUTTERING SOUND. 'WHILE CLIMBING, THE PLT DECLARED AN EMERGENCY & REPORTED A FIRE IN THE L ENG. HE WAS VECTORED TOWARD ALTUS AFB WHILE DSCNDG IN IFR CONDITIONS. HE DSCNDD INTO VFR CONDITIONS & SAW THE ARPT ABOUT 3 MI AWAY. A WITNESS SAW SMOKE & FIRE TRAILING FROM THE VICINITY OF THE L ENG. HE STATED THAT THE ACFT'S NOSE CAME UP, THE PLANE ROLLED TO THE LEFT, THEN IT ENTERED A STEEP, NOSE DOWN, INVERTED ATTITUDE JUST BEFORE IT CRASHED & BURNED. AN EXAM REVEALED THE ENG EXHAUST MAINIFOLD HEADER ASSY HAD FAILED & ALLOWED HOT EXHAUST GASES TO ESCAPE IN THE ENG NACELLE IN THE VICINITY OF FUEL & OIL LINES. CORROSION HAD PROGRESSED THRU THE HEADER ASSY. AD 75-23-08 REQD GEN INSPN, BUT CONTAINED NOTE 'DO NOT REMOVE CLAMPS.' NO RECORD OF REPLACEMENT IN 6100 HRS
Quoted verbatim from the NTSB record.
Other Cessna 402 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Nov 1985 | Cessna 402C | Detroit, Michigan, United States | Gateway Pace Aviation, Inc. | Fatal | 1 |
| 8 May 1985 | Cessna 402C | Guadalupe, Dominica | Executive Air Charter | No injuries | - |
| 25 Oct 1985 | Cessna 402C | Miami, Florida, United States | Gull Air, Inc. | No injuries | - |
| 13 Dec 1985 | Cessna 402B | Gardner, Kansas, United States | - | No injuries | - |
| 28 Oct 1985 | Cessna 402B | St. Thomas | C and M Airlines | No injuries | - |
| 30 Mar 1985 | Cessna 402C | Aspen, Colorado, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 5 Aug 1985 | Cessna 152 | Sand Springs, Oklahoma, United States | Woodrow P. Mullen | Minor injuries | - |
| 14 Aug 1985 | Cessna 172N | Sallisaw, Oklahoma, United States | - | No injuries | - |
| 28 Aug 1985 | North American BRITISH HARVARD MKII | Ada, Oklahoma, United States | ADA Aircraft | Fatal | 2 |
| 15 Aug 1985 | Cessna A188B | Cushing, Oklahoma, United States | - | Minor injuries | - |
| 5 Aug 1985 | Piper J4A | Duncan, Oklahoma, United States | Irving L. Kinney | No injuries | - |
| 1 Apr 1985 | Grumman AG CAT G-164 | Norman, Oklahoma, United States | - | Serious injuries | - |