# Accident 19990421003829A: Beech A36, Courtland, AL, April 21, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 21, 1999, 16:43 local time
- Place: Courtland, AL
- Airport: Industrial Airpark Airport
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 34.6602° N, 87.3096° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=34.6602&lon=-87.3096&mi=10
- Aircraft: N769LW, a cancelled registration (https://openairdocs.org/deregistered/N769LW-2001-03-05) (OpenAirDocs)
- Registry model: Beech A36 (registry code 1151604, https://openairdocs.org/model/beech-a36) (OpenAirDocs)
- Reported make and model: BEECH A36
- Reported engine: CONT IO520BA
- Fatal injuries: 0
- Pilot flight hours: 1,597 total, 15 in the last 90 days
- NTSB investigation: [NTSB MIA99LA137](https://openairdocs.org/ntsb/MIA99LA137) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990421003829A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ACFT LOST POWER AND ATTEMPTED TO LAND AT COURTLAND ARPT BUT CRASHED 2 MILES SE OF THE ARPT, OTHER CIRCUMSTANCES ARE UNKNOWN. (.4)DURING CRUISE FLIGHT, THROTTLE RESPONSE WAS NOT POSSIBLE AND THE ENGINE RPM DECREASED TO NEAR IDLE.  WHILE DESCENDING FOR A FORCED LANDING WITH THE LANDING GEAR EXTENDED, THE PILOT LATER STATED THAT HE COULD NOT RECALL THE LAST SEVERAL THOUSAND FEET OF THE DESCENT.  THE AIRPLANE COLLIDED WITH TREES THEN THE GROUND.  POSTACCIDENT EXAMINATION OF THE AIRPLANE REVEALED A CASTELLATED NUT WHICH SECURES A LEVER ONTO THE THROTTLE PLATE SHAFT WAS LOOSE BY 10.5 TURNS OF THE 6 SIDED NUT; NO COTTER PIN WAS FOUND.  THIS CONDITION WOULD NOT ALLOW MOVEMENT OF THE THROTTLE PLATE SHAFT WITH MOVEMENT OF THE THROTTLE CONTROL.  POSTACCIDENT, THE ENGINE WAS REMOVED FROM THE AIRPLANE, PLACED IN A TEST CELL, AND FOUND TO OPERATE NORMALLY.  FOLLOWING COLLAPSE OF THE NOSE LANDING GEAR AUGUST 1998, THE ENGINE AND FUEL CONTROL VALVE WERE OVERHAULED.  FOLLOWING THE ENGINE OVERHAUL, THE ENGINE WAS TEST RUN.  THE AIR THROTTLE ASSEMBLY WAS THEN REMOVED FOR SHIPPING, THE LEVER WAS LOOSENE                                                                                                    D, AND THE ENGINE AND BOXEDAIR THROTTLE ASSEMBLY WERE SHIPPED TO WHERE THE IARPLANE WAS BEING REPAIRED. THE AIR THROTTLE ASSEMBLY WAS INSTALLED ON THE ENGINE WHICH WAS INSTALLED INTO THE AIRPLANE.  THE ENGINE WAS THEN RUN AND NO ENGINE RELATED DISCREPANCIES WERE NOTED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB MIA99LA137](https://openairdocs.org/ntsb/MIA99LA137), Apr 21, 1999: Beech A36 (N769LW), Courtland, AL, substantial damage. Probable cause: The failure of maintenance personnel from Signature Flight Support to assure that a cotter pin was installed at the air throttle assembly lever following installation of the overhauled fuel control…

## Other reports on N769LW (1)

Matched to the same aircraft by N-number and date.

- [Incident 19980820035689I](https://openairdocs.org/incident/19980820035689I), Aug 20, 1998: Beech A36 (N769LW), Scottsboro, AL, Minor damage. (-5) Pilot had an alternator failure, loss of electrical capability the pilot stated he manually extended the landing gear. Upon landing nose gear collapsed,…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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