# NTSB OAK72AP037: Boeing 747, N606US, No.Pacific Ocean (Pacific Ocean), April 12, 1972

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: April 12, 1972
- 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, 13 minor, 145 uninjured
- Status: Completed, report November 27, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 165389
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK72AP037
- Page: https://openairdocs.org/ntsb/OAK72AP037

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0007  72/4/12    NO.PACIFIC OCEAN    BOEING 747          CR-  0  0 14  SCHED INTERNATL PASSG SRV AIRLINE TRANSPORT, AGE
        TIME - 0140                    N606US              PX-  0  2144                            54, 25378 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            952 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - NORTHWEST AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          TOKYO,JAPAN                 HONOLULU,HAWAII
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE IN FLIGHT,CLEAR AIR
        FACTOR(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PASSENGER
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT NOT FASTENED
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT SIGN OFF
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - WEATHER CONSIDERABLY WORSE THAN FORECAST
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  29000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          NONE                                                     VFR
        TYPE OF FLIGHT PLAN
          IFR
        REMARKS- FLEW INTO UNFORECAST AND UNEXPECTED SEVERE CLEAR AIR TURB.
```

## Aircraft

- Registration: N606US (not matched to a registry record)
- Reported make and model: BOEING 747
- Category: Airplane
- Engines: turbo fan
- Damage: 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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