# Accident 19980117002509A: Cessna STC150, San Carlos, CA, January 17, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 17, 1998, 15:10 local time
- Place: San Carlos, CA
- Airport: San Carlos Airport
- Damage: Substantial damage
- Phase of flight: Level Off Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 37.4899° N, 122.2606° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=37.4899&lon=-122.2606&mi=10
- Aircraft: N7911F, a cancelled registration (https://openairdocs.org/deregistered/N7911F-2018-03-06) (OpenAirDocs)
- Registry model: Cessna 150F (registry code 2071814, https://openairdocs.org/model/cessna-150f) (OpenAirDocs)
- Registry engine: Continental 0-200 series (registry code 17020, https://openairdocs.org/engine/continental-0-200-series) (OpenAirDocs)
- Reported make and model: CESSNA STC150
- Reported engine: CONT O200A
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 770 total, 90 in this make and model, 15 in the last 90 days
- NTSB investigation: [NTSB LAX98LA080](https://openairdocs.org/ntsb/LAX98LA080) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980117002509A

## Narrative

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

BOUNCED. SEAT SLID BACK. LOST CONTROL OF TAIL DRAGGER. LEFT WING AND GEAR DAMAGED. (.4)THE AIRCRAFT WAS MODIFIED BY STC TO A CONVENTIONAL LANDING GEAR CONFIGURATION.  THE PILOT REPORTED THAT HE DID NOT SUFFICIENTLY REDUCE THE AIRSPEED DURING THE APPROACH AND THE AIRCRAFT 'BOUNCED ABOUT 2-3 FEET' ON THE TOUCHDOWN.  AT THAT POINT, THE SEAT SLID BACKWARDS ABOUT 3 TO 4 INCHES AND THE PILOT STATED THAT THE ABRUPT SEAT MOVEMENT CAUSED HIS LOSS OF CONTROL.  THE AIRCRAFT THEN GROUND LOOPED, TURNED APPROXIMATELY 90 DEGREES, AND CAME TO A STOP UPRIGHT ON THE RUNWAY.  AIRCRAFT MAINTENANCE RECORDS DISCLOSED THAT AIRWORTHINESS DIRECTIVE 87-20-03R2, WHICH PERTAINS TO THE INSPECTION OF THE SEAT TRACKS, HAD BEEN COMPLIED WITH.  THE PILOT REPORTED TO AN FAA INSPECTOR THAT HE HAD FORGOTTEN TO ENGAGE THE SEAT LOCKING PIN BEFORE THE FLIGHT.

## 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 LAX98LA080](https://openairdocs.org/ntsb/LAX98LA080), Jan 17, 1998: Cessna 150F (N7911F), San Carlos, CA, substantial damage. Probable cause: The pilot's excessive airspeed, which resulted in a bounced landing, and, his failure to ensure that his seat locking pin was engaged, which caused his seat to move backwards during the touchdown and…

## Other reports on N7911F (3)

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

- [Accident 20120421009679A](https://openairdocs.org/incident/20120421009679A), Apr 21, 2012: Cessna 150F (N7911F), Fairbanks, AK, Substantial damage. Aircraft departed rnwy 20R. Shortly after rotating, pitched steeply up followed by a stall then steep pitch down impacting the ground at about a 45 degree nose…
- [Accident 19990703008239A](https://openairdocs.org/incident/19990703008239A), Jul 3, 1999: Cessna 150F (N7911F), Fairbanks, AK, Substantial damage. Acft crashed on landing. (.19) on July 3, 1999, about 2047 Alaska daylight time, a tailwheel equipped Cessna 150F airplane, N7911F, sustained substantial…
- [Incident 19790306009629I](https://openairdocs.org/incident/19790306009629I), Mar 6, 1979: Cessna 150F (N7911F), Riverbank, CA. Aircraft ran out of gas on crosscountry flight.

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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