# NTSB OAK77IA006: Beech A36, N124TW, San Francisco, CA, November 21, 1976

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: November 21, 1976
- Place: San Francisco, CA · SAN FRANCISCO, CA
- Location: 37.7750° N, 122.4194° W: Placed by OpenAirDocs: center of San Francisco, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7750&lon=-122.4194&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 123 uninjured
- Status: Completed, report February 21, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157101
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK77IA006
- Page: https://openairdocs.org/ntsb/OAK77IA006

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0016  76/11/21   SAN FRANCISCO,CA    BOEING 727          CR-  0  0  7  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1807                    N691WA              PX-  0  0112                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  4                            HOURS, UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - SAN FRANCISCO
        OPERATOR - PACIFIC SOUTHWEST
        DEPARTURE POINT             INTENDED DESTINATION
          SAN FRANCISCO,CA            SAN DIEGO,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: ONE AIRBORNE                    TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0016  76/11/21   SAN FRANCISCO,CA    BEECH A36           CR-  0  0  2  NONCOMMERCIAL             CERTIFICATE UNKNOWN, AGE
        TIME - 1807                    N124TW              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0119                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - SAN FRANCISCO
        DEPARTURE POINT             INTENDED DESTINATION
          SAN FRANCISCO,CA            HAWTHORNE,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: ONE AIRBORNE                    TAXI: TO TAKEOFF
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT FACILITIES: TAXIWAY LIGHTING AND MARKING
        REMARKS- FAILED TO HOLD SHORT OF RWY.TWY HOLDING LINES PARTLY OBLITERATED DUE REPAVING.
```

## Aircraft 1

- Registration: [N124TW](https://openairdocs.org/deregistered/N124TW-1993-04-16), registration cancelled 1993-04-16, S/N E478 (OpenAirDocs)
- Reported make and model: BEECH A36
- Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (registry code 1151604) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Minor damage
- Airport: San Francisco

## Aircraft 2

- Registration: [N691WA](https://openairdocs.org/deregistered/N691WA-1977-08-11), registration cancelled 1977-08-11, S/N 19505, built 1967 (OpenAirDocs)
- Reported make and model: BOEING 727
- Registry model: [Boeing 727-173C](https://openairdocs.org/model/boeing-727-173c) (registry code 1384059) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: Minor damage
- Airport: San Francisco

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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