# NTSB UNK65X0377: Piper PA25, N6630Z, Elmira, CA, October 22, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 22, 1964
- Place: Elmira, CA · ELMIRA, CA
- Location: 38.3523° N, 121.9077° W: Placed by OpenAirDocs: center of Elmira, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.3523&lon=-121.9077&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 27, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 180877
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK65X0377
- Page: https://openairdocs.org/ntsb/UNK65X0377

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3291  64/10/22   ELMIRA CALIF        PIPER PA25          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 35, 5500
        TIME - 1530                    N6630Z              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 1200 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT -                 Z
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (OWNER PERSONNEL)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (OWNER-PILOT)
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 5000                       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  ELEVATION-AREA BEING TREATED-FEET -  62
        REMARKS- BOTH LANDING GEAR SHOCK STRUTS FAILED AT LOWER ATTACH FITTINGS. AD NOT COMPLIED WITH.
```

## Aircraft

- Registration: [N6630Z](https://openairdocs.org/deregistered/N6630Z-1967-07-18), registration cancelled 1967-07-18, S/N 25-2214 (OpenAirDocs)
- Reported make and model: PIPER PA25
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport:                 Z

## Other investigations on N6630Z (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 OAK68D0189](https://openairdocs.org/ntsb/OAK68D0189), Jul 18, 1967: Piper PA-25 (N6630Z), Travis Afb, CA, destroyed

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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