# NTSB IAD74AI047: Boeing 727, N1728T, Washington, DC, August 8, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 8, 1973
- Place: Washington, DC · WASHINGTON, DC
- Location: 38.8951° N, 77.0364° W: Placed by OpenAirDocs: center of Washington, DC, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8951&lon=-77.0364&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 81 uninjured
- Status: Completed, report June 14, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 189756
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD74AI047
- Page: https://openairdocs.org/ntsb/IAD74AI047

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0039   73/8/8    WASHINGTON,DC       BOEING 727          CR-  0  0  6  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1433                    N1728T              PX-  0  0 75                            42, 7700 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            5400 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - DULLES INTL
        OPERATOR - BRANIFF AIRWAYS,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          WASHINGTON,DC               NEW YORK,NY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN BRAKES,WHEEL ASSEMBLY,WHEEL WELL
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - LANDED ON FOAMED RUNWAY
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  UNUSUAL NOISE
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- NMBR FOUR WHL LOCKOUT-DEBOOST VALVE DMGD CAUSING BRAKE DRAG,OVRHEAT WHL,INTRNL TIRE FIRE,TIRE BLEW
```

## Aircraft

- Registration: [N1728T](https://openairdocs.org/deregistered/N1728T-1974-05-08), registration cancelled 1974-05-08, S/N 19860, built 1967 (OpenAirDocs)
- Reported make and model: BOEING 727
- Registry model: [Boeing 727-17](https://openairdocs.org/model/boeing-727-17) (registry code 138400A) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: Substantial damage
- Airport: Dulles Intl

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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