# NTSB OAK65A0037: Boeing B-720, N7214U, San Francisco, CA, November 5, 1964

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: November 5, 1964
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 3 minor, 91 uninjured
- Status: Completed, report February 15, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 185988
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK65A0037
- Page: https://openairdocs.org/ntsb/OAK65A0037

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0079   64/11/5   SAN FRANCISCO CAL   BOEING B-720        CR-  0  0  7  SCHED INTERNATL PASSG SRV AIRLINE TRANSPORT, AGE
        TIME - 1835                    N7214U              PX-  0  0 87                            56, 21000 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            875 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - SAN FRANCISCO INT
        OPERATOR - UNITED AIR LINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: GEAR LOCKING MECHANISM
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- FATIGUE FAILURE OF THE NOSE GEAR DRAG BRACE LOCKROD UPPER ATTACH BOLT P/N BACB30ABP 6-37.
```

## Aircraft

- Registration: [N7214U](https://openairdocs.org/deregistered/N7214U-1976-04-27), registration cancelled 1976-04-27, S/N 18046 (OpenAirDocs)
- Reported make and model: BOEING B-720
- Registry model: [Boeing 720-022](https://openairdocs.org/model/boeing-720-022) (registry code 1383810) (OpenAirDocs)
- Category: Airplane
- Engines: turbo jet
- Damage: Substantial damage
- Airport: San Francisco Int

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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