# Incident 19990715034479I: Grumav S2F, Mesa, AZ, July 15, 1999

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 15, 1999, 15:14 local time
- Place: Mesa, AZ
- Airport: Falcon Field Airport
- Phase of flight: Descent
- Operating rules: General operating rules (Part 91)
- Location: 33.4608° N, 111.7283° W: Placed by OpenAirDocs at FALCON FLD (FFZ), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.4608&lon=-111.7283&mi=10
- Aircraft: N426DF, registered now (https://openairdocs.org/aircraft/N426DF) (OpenAirDocs)
- Registry model: Marsh S-2F3AT (registry code 5420000, https://openairdocs.org/model/marsh-s-2f3at) (OpenAirDocs)
- Registry engine: Honeywell TPE331-SER series (registry code 33909, https://openairdocs.org/engine/honeywell-tpe331-ser-series) (OpenAirDocs)
- Reported make and model: GRUMAV S2F
- Reported engine: GARRTT TPE33114GR
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 27,000 total, 1,000 in this make and model, 136 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990715034479I

## Narrative

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

(-23) WHILE DESCENDING, THE PILOT NOTICED A LACK OF AILERON/ROLL CONTROL. PILOT NOTIFIED FFZ TOWER AND PATTERN TRAFFIC THEN CONTINUED DECENT UTILIZING A SYMETRICAL THRUST OF ENGINE.  PILOT LANDED @ FFZ UNEVENTFULLY WITH NO DAMAGE TO AIRCRAFT.  SUBSEQUENT INSPECTION OF AILERON(S) FLT. CONTROL AREAS REVEALED TWO (2) TAPER PINS (BLOCK #21A) NOT FULLY SEATED AND WERE INTERFERING WITH MOVEMENT OF AILERON(S).  CONDITION CORRECTED, A/C TEST FLOWN O.K.  A/C'S FIRE BOMBER FOR CALIFORNIA FORESTRY DEPT.

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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