# NTSB OAK70IP049: Boeing 720, N7225U, Las Vegas, NV, March 28, 1970

- Type: NTSB incident investigation
- Classification: Incident · Minor injuries · Closed
- Date: March 28, 1970
- Place: Las Vegas, NV · LAS VEGAS, NV
- Location: 36.1750° N, 115.1372° W: Placed by OpenAirDocs: center of Las Vegas, NV, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.1750&lon=-115.1372&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 122 uninjured
- Status: Completed, report February 10, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 131208
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK70IP049
- Page: https://openairdocs.org/ntsb/OAK70IP049

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0046  70/3/28    LAS VEGAS,NEV       BOEING 720          CR-  0  0  9  SCHED DOM PASSG SRV       CERTIFICATE UNKNOWN, AGE
        TIME - 1238                    N7225U              PX-  0  0115                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - MCCARRAN
        OPERATOR - UNITED AIR LINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          LAS VEGAS,NEV               CLEVELAND,OHIO               CHICAGO,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           TAXI: TO TAKEOFF
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           MISCELLANEOUS ACTS,CONDITIONS - CORRODED/CORROSION
         FIRE AFTER IMPACT
        REMARKS- R MLG TRUCK BEAM P/N 65-22082-9,S/N SW351 FAILED.TOTAL TIME ON PART 21004 HR,3480 SINCE OVHAUL.
```

## Aircraft

- Registration: [N7225U](https://openairdocs.org/deregistered/N7225U-1988-12-13), registration cancelled 1988-12-13, S/N 18078 (OpenAirDocs)
- Reported make and model: BOEING 720
- Registry model: [Boeing 720-022](https://openairdocs.org/model/boeing-720-022) (registry code 1383810) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: Minor damage
- Airport: Mccarran

## Other investigations on N7225U (2)

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 SEA74IS025](https://openairdocs.org/ntsb/SEA74IS025), Dec 5, 1973: Boeing 720A (N7225U), Moses Lake, WA, incident, minor damage
- [NTSB OAK71AP019](https://openairdocs.org/ntsb/OAK71AP019), Nov 28, 1970: Boeing 720 (N7225U), Pt.Reyes, CA, 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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