# NTSB FTW77FRA35: Cessna 421B, N5998M, Houston, TX, September 23, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 23, 1977
- Place: Houston, TX · HOUSTON, TX
- Location: 29.7633° N, 95.3633° W: Placed by OpenAirDocs: center of Houston, TX, within about 14 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.7633&lon=-95.3633&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 4, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 158640
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW77FRA35
- Page: https://openairdocs.org/ntsb/FTW77FRA35

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2880  77/9/23    HOUSTON,TX          CESSNA 421B         CR-  0  0  2  MISCELLANEOUS             AIRLINE TRANSPORT, AGE
        TIME - 1545                    N5998M              PX-  0  0  0  TEST                      28, 2225 TOTAL HOURS, 230
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - WILLIAM P HOBBY
        DEPARTURE POINT             INTENDED DESTINATION
          HOUSTON,TX                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DELAYED ACTION IN ABORTING TAKEOFF
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - FAILED TO USE ALL AVAILABLE RUNWAY
           MISCELLANEOUS ACTS,CONDITIONS - RAN OFF END OF RUNWAY
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
```

## Aircraft

- Registration: [N5998M](https://openairdocs.org/deregistered/N5998M-2009-08-18), registration cancelled 2009-08-18, S/N 421B0241, built 1972 (OpenAirDocs)
- Reported make and model: CESSNA 421B
- Registry model: [Cessna 421B](https://openairdocs.org/model/cessna-421b) (registry code 2076014) (OpenAirDocs)
- Registry engine: [Continental GTSI0-520-F-K](https://openairdocs.org/engine/continental-gtsi0-520-f-k) (registry code 17031, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: William P Hobby

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19770923030849A](https://openairdocs.org/incident/19770923030849A), Sep 23, 1977: Cessna 421, Houston, TX, Substantial damage

## Other investigations on N5998M (1)

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 CHI74FEC30](https://openairdocs.org/ntsb/CHI74FEC30), Feb 12, 1974: Cessna 421B (N5998M), Flint, MI, substantial 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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