# Accident 19980821021499A: Cessna 150B, Lamar, MO, August 21, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 21, 1998, 15:45 local time
- Place: Lamar, MO
- Airport: Lamar Municipal Airport
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 37.4902° N, 94.2695° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=37.4902&lon=-94.2695&mi=10
- Aircraft: N1239Y (not matched to a registry record)
- Reported make and model: CESSNA 150B
- Reported engine: CONT O200A
- People aboard: 1
- Fatal injuries: 0
- NTSB investigation: [NTSB CHI98LA326](https://openairdocs.org/ntsb/CHI98LA326) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980821021499A

## Narrative

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

(-23) AIRCRAFT LANDED ON RUNWAY 21, DURING THIS ROLL OUT THE AIRCRAFT VEERED TO THE LEFT OF CENTERLINE AND LEFT THE RUNWAY. AIRCRAFT STRUCK A DRAINAGE CULVERT AND OVERTURNED. POST ACCIDENT INVESTIGATION INDICATES THAT THE LEFT BRAKE LOCKED CAUSING THE VEER TO THE LEFT. (.4) THE PILOT SAID HER LANDING IN THE TAIL WHEEL AIRPLANE WAS UNEVENTFUL.  DURING THE LANDING ROLL, THE AIRPLANE SUDDENLY VEERED TO THE LEFT WHILE IN A 3-POINT ATTITUDE.  THE PILOT SAID RIGHT RUDDER DID NOT STOP THE TURN AND THE AIRPLANE RAN OFF THE RUNWAY EDGE AND INTO A 4-FOOT DEEP DITCH.  THE ON-SITE INVESTIGATION REVEALED THAT THE LEFT MAIN LANDING GEAR'S BRAKE TORQUE PLATE HOLES AND TORQUE PINS WERE DRY.  THE WHEEL WOULD NOT ROTATE.  ACCORDING TO THE PILOT, SHE HAD NEVER EXPERIENCED DRAGGING BRAKES WHILE FLYING THE AIRPLANE.

## 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 CHI98LA326](https://openairdocs.org/ntsb/CHI98LA326), Aug 21, 1998: Cessna 150B (N1239Y), Lamar, MO, substantial damage. Probable cause: inadequate lubrication of the torque plate holes and torque pins by the mechanic who performed the airplane's last annual inspection.

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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