# NTSB IAD79DA025: Boeing 737, N9009U, Norfolk, VA, December 21, 1978

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: December 21, 1978
- Place: Norfolk, VA · NORFOLK, VA
- Location: 36.8468° N, 76.2852° W: Placed by OpenAirDocs: center of Norfolk, VA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.8468&lon=-76.2852&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor, 97 uninjured
- Status: Completed, report February 12, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 139552
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD79DA025
- Page: https://openairdocs.org/ntsb/IAD79DA025

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0018  78/12/21 NR.NORFOLK,VA         BOEING 737          CR-  0  1  5  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1227                    N9009U              PX-  0  0 93                            48, 13000 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            4600 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - UNITED AIR LINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          BALTIMORE,MD               NORFOLK,VA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE IN FLIGHT,CLEAR AIR
           PERSONNEL - FLIGHT PERSONNEL: FLIGHT ATTENDANT
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT NOT FASTENED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT SIGN ON
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  7000
        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
```

## Aircraft

- Registration: [N9009U](https://openairdocs.org/deregistered/N9009U-1999-04-13), registration cancelled 1999-04-13, S/N 19047 (OpenAirDocs)
- Reported make and model: BOEING 737
- Registry model: [Boeing 737-222](https://openairdocs.org/model/boeing-737-222) (registry code 1384473) (OpenAirDocs)
- Category: Airplane
- Engines: turbo jet
- 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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