# NTSB DEN68D0252: Piper PA-22, N3670A, Roswell, NM, April 24, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 24, 1968
- Place: Roswell, NM · ROSWELL, NM
- Location: 33.3734° N, 104.5294° W: Placed by OpenAirDocs: center of Roswell, NM, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.3734&lon=-104.5294&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 4, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 111323
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN68D0252
- Page: https://openairdocs.org/ntsb/DEN68D0252

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0981  68/4/24  NR.ROSWELL,N MEX      PIPER PA-22         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 40, 300
        TIME - 1330                    N3670A              PX-  0  0  1  BUSINESS                  TOTAL HOURS, 130 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NO.3 CYL EXHAUST VALVE FAILED. PLT SWERVED TO AVOID HIWAY SIGN.
```

## Aircraft

- Registration: [N3670A](https://openairdocs.org/deregistered/N3670A-1982-03-12), registration cancelled 1982-03-12, S/N 22-1929 (OpenAirDocs)
- Reported make and model: PIPER PA-22
- Registry model: [Piper PA-22-135](https://openairdocs.org/model/piper-pa-22-135) (registry code 7102206) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N3670A (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 FTW66F0668](https://openairdocs.org/ntsb/FTW66F0668), May 11, 1966: Piper PA-22 (N3670A), La Grange, TX, 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.

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