# NTSB ANC73DAG36: Piper PA-12, N3861M, Styx River, AK, September 21, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 21, 1972
- Place: Styx River, AK · STYX RIVER, AK
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report February 28, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 168100
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC73DAG36
- Page: https://openairdocs.org/ntsb/ANC73DAG36

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2640  72/9/21    STYX RIVER,ALAS     PIPER PA-12         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1200                    N3861M              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  AGE 29, 2080 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            350 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ANCHORAGE,ALAS              STYX RIVER,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
        FACTOR(S)
           AIRFRAME - LANDING GEAR: WHEELS,TIRES,AXLES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- TIRE VALVE FAILED DUE HARD BRAKING
```

## Aircraft

- Registration: N3861M (not matched to a registry record)
- Reported make and model: PIPER PA-12
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

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.