# NTSB ANC72AA050: Maule M4220C, N40311, Big Delta, AK, June 21, 1972

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 21, 1972
- Place: Big Delta, AK · BIG DELTA, AK
- Location: 64.1525° N, 145.8422° W: Placed by OpenAirDocs: center of Big Delta, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=64.1525&lon=-145.8422&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report February 17, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 166979
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC72AA050
- Page: https://openairdocs.org/ntsb/ANC72AA050

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2050  72/6/21    BIG DELTA,ALAS      MAULE M4220C        CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0805                    N40311              PX-  0  0  1  AIR TAXI-PASSG            AGE 25, 2050 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            18 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - BIG DELTA
        DEPARTURE POINT             INTENDED DESTINATION
          FAIRBANKS,ALAS              BIG DELTA,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
        REMARKS- TAIL HIT SWALE,BOUNCED INTO AIR.HAVING MOVED EYES,PLT APPLIED BRAKES.
```

## Aircraft

- Registration: N40311 (not matched to a registry record)
- Reported make and model: MAULE M4220C
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Big Delta

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

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