# NTSB DEN73AD041: Boeing 707, N7577A, Denver, CO, March 5, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 5, 1973
- Place: Denver, CO · DENVER, CO
- Location: 39.7392° N, 104.9847° W: Placed by OpenAirDocs: center of Denver, CO, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7392&lon=-104.9847&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report June 20, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 169614
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN73AD041
- Page: https://openairdocs.org/ntsb/DEN73AD041

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0009   73/3/5    DENVER,COLO         BOEING 707          CR-  0  0  3  FERRY                     AIRLINE TRANSPORT, AGE
        TIME - 1057                    N7577A              PX-  0  0  0                            56, 16500 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            650 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - STAPLETON
        OPERATOR - AMERICAN AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          DENVER,COLO                 TULSA,OKLA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           COLLISION WITH GROUND/WATER: UNCONTROLLED                TAKEOFF: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           PILOT IN COMMAND - FAILED TO ABORT TAKEOFF
           PILOT IN COMMAND - PREMATURE LIFT-OFF
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
         FIRE AFTER IMPACT
        REMARKS- 3 ENG FERRY,ACFT VEERED R 3 TIMES,PLT CONT TKOF.L WG TIP,NR 1 ENG HIT GRND.T/D TO R OF RWY IN YAW.
```

## Aircraft

- Registration: [N7577A](https://openairdocs.org/deregistered/N7577A-1982-02-04), registration cancelled 1982-02-04, S/N 19327, built 1967 (OpenAirDocs)
- Reported make and model: BOEING 707
- Registry model: [Boeing 707-123B](https://openairdocs.org/model/boeing-707-123b) (registry code 138360H) (OpenAirDocs)
- Registry engine: [Pratt & Whitney JT3D-3&3B](https://openairdocs.org/engine/pratt-whitney-jt3d-3-3b) (registry code 52039, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: Substantial damage
- Airport: Stapleton

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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