# NTSB UNK64X2887: Convair PB4Y2, N9681C, Challis, ID, July 17, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 17, 1964
- Place: Challis, ID · CHALLIS, ID
- Location: 44.5058° N, 114.2283° W: Placed by OpenAirDocs: center of Challis, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.5058&lon=-114.2283&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 13, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 183677
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2887
- Page: https://openairdocs.org/ntsb/UNK64X2887

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0485  64/7/17    CHALLIS IDAHO       CONVAIR PB4Y2       CR-  0  0  2  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0640                    N9681C              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 42, 15000 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 300 IN TYPE,
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: SWATH RUN
           COLLIDED WITH: OBJECT                                    LANDING: ROLL
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (OWNER PERSONNEL)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (OWNER-PILOT)
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - FAILURE OF TWO OR MORE ENGINES
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-3 ENGINES
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING FORESTS
          KIND OF CROP - FOREST-TREES                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - NOT AVAILABLE
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - BELLY                             TERRAIN-TYPE -MOUNTAINOUS
          SWATH RUN-HOW FLOWN - UNKNOWN/NOT REPORTED
```

## Aircraft

- Registration: [N9681C](https://openairdocs.org/deregistered/N9681C-1971-06-16), registration cancelled 1971-06-16, S/N 69810 (OpenAirDocs)
- Reported make and model: CONVAIR PB4Y2
- Registry model: [Consolidated Vultee P4Y-2](https://openairdocs.org/model/consolidated-vultee-p4y-2) (registry code 2421102) (OpenAirDocs)
- 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.

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