# NTSB MKC77DER35: Let-Np-K L-13, N99953, Warren, MN, April 17, 1977

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: April 17, 1977
- Place: Warren, MN · WARREN, MN
- Location: 48.1940° N, 96.7688° W: Placed by OpenAirDocs: center of Warren, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=48.1940&lon=-96.7688&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report September 7, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157876
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC77DER35
- Page: https://openairdocs.org/ntsb/MKC77DER35

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1736  77/4/17    WARREN,MN           LET-NP-K L-13       CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, FL.INSTR.,
        TIME - 1800                    N99953              PX-  0  0  1  TOWING GLIDERS            AGE 21, 1101 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            115 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - WARREN
        DEPARTURE POINT             INTENDED DESTINATION
          WARREN,MN                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
        REMARKS- AERO-TOW BY BELLANCA 7KCAB,N53955,WHICH ABORTED.TOW ROPE NOT RELEASED.SUBSTANTIAL DMG TO N53955.
```

## Aircraft

- Registration: N99953 (not matched to a registry record)
- Reported make and model: LET-NP-K L-13
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Warren

## 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 19770417017399A](https://openairdocs.org/incident/19770417017399A), Apr 17, 1977: Let L13BLANIK, Warren, MN, Substantial damage. Aero-tow by Bellanca 7KCAB,N53955,which aborted. Tow rope not released. Substantial dmg to N53955.

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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