# NTSB FTW76DRD12: Grum Amer AA1-B, N9937L, Thibodaux, LA, September 28, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 28, 1975
- Place: Thibodaux, LA · THIBODAUX, LA
- Location: 29.7949° N, 90.8146° W: Placed by OpenAirDocs: center of Thibodaux, LA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.7949&lon=-90.8146&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 12, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 151260
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW76DRD12
- Page: https://openairdocs.org/ntsb/FTW76DRD12

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3019  75/9/28    THIBODAUX,LA        GRUM AMER AA1-B     CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1300                    N9937L              PX-  0  0  0  DUAL                      AGE 20, 692 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            144 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          THIBODAUX,LA                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: GO-AROUND
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - ENGINE LOADED UP
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- DEMONSTRATING GLIDES.
```

## Aircraft

- Registration: [N9937L](https://openairdocs.org/deregistered/N9937L-1981-06-04), registration cancelled 1981-06-04, S/N AA1B-0237 (OpenAirDocs)
- Reported make and model: GRUM AMER AA1-B
- Registry model: [Grumman American Avn. AA-1B](https://openairdocs.org/model/grumman-american-avn-aa-1b) (registry code 3960103) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19750928031189A](https://openairdocs.org/incident/19750928031189A), Sep 28, 1975: Grumav AA1B, Thibodaux, LA, Substantial damage. Demonstrating glides.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.