# NTSB NYC72AN008: Boeing 707, N423PA, No.Pacific Ocean (Pacific Ocean), June 20, 1971

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: June 20, 1971
- Place: No.Pacific Ocean (Pacific Ocean) · NO.PACIFIC OCEAN, PO
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 9 minor, 69 uninjured
- Status: Completed, report December 29, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 161308
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC72AN008
- Page: https://openairdocs.org/ntsb/NYC72AN008

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0016  71/6/20    NO.PACIFIC OCEAN    BOEING 707          CR-  0  0 10  SCHED INTERNATL PASSG SRV AIRLINE TRANSPORT, AGE
        TIME - 0318                    N423PA              PX-  0  2 68                            57, 24706 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            4486 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - PAN AMERICAN WORLD AIRWAYS,INC.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          LOS ANGELES,CALIF           MELBOURNE,AUSTRALIA          SYDNEY,AUSTRALIA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT NOT FASTENED
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT SIGN OFF
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          BROKEN                                                   UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     THUNDERSTORM
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          NONE                                                     VFR
        TYPE OF FLIGHT PLAN
          IFR
        REMARKS- FLT IN AREA OF KNOWN CB BUILD UPS. ACFT RADAR GAVE NO INDICATION. PENETRATED TOP OF CB.
```

## Aircraft

- Registration: [N423PA](https://openairdocs.org/deregistered/N423PA-1977-02-28), registration cancelled 1977-02-28, S/N 19276 (OpenAirDocs)
- Reported make and model: BOEING 707
- Registry model: [Boeing 707-321B](https://openairdocs.org/model/boeing-707-321b) (registry code 138366B) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: No damage

## Other investigations on N423PA (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 NYC73AN059](https://openairdocs.org/ntsb/NYC73AN059), Oct 24, 1972: Boeing 707 (N423PA), Gulf Of Mexico (Gulf of Mexico), no 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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