# NTSB IAD77FIG21: Cessna 172, N2477L, College Park, MD, June 25, 1977

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 25, 1977
- Place: College Park, MD · COLLEGE PARK, MD
- Location: 38.9967° N, 76.9364° W: Placed by OpenAirDocs: center of College Park, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9967&lon=-76.9364&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report August 4, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 147676
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD77FIG21
- Page: https://openairdocs.org/ntsb/IAD77FIG21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1475  77/6/25    COLLEGE PARK,MD     CESSNA 172          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 59, 1948
        TIME - 1300                    N2477L              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 1659 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TETERBORO,NJ                WASHINGTON,DC
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: DESCENDING
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - STUCK
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 2 EXHAUST VALVE STUCK OPEN.
```

## Aircraft

- Registration: [N2477L](https://openairdocs.org/deregistered/N2477L-2014-09-22), registration cancelled 2014-09-22, S/N 17255677, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172H](https://openairdocs.org/model/cessna-172h) (registry code 2072424) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19770625016339A](https://openairdocs.org/incident/19770625016339A), Jun 25, 1977: Cessna 172H, College Park, MD, Substantial damage. Nr 2 exhaust valve stuck open.

## Other investigations on N2477L (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 NYC84LA126](https://openairdocs.org/ntsb/NYC84LA126), Apr 1, 1984: Cessna 172H (N2477L), Hagerstown, MD, 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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