# NTSB MKC80FA013: Piper PA-31, N7511L, Lee'S Summit, MO, December 11, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 11, 1979
- Place: Lee'S Summit, MO · LEE'S SUMMIT, MO
- Location: 38.9108° N, 94.3822° W: Placed by OpenAirDocs: center of Lee's Summit, MO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9108&lon=-94.3822&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report March 17, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 132076
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC80FA013
- Page: https://openairdocs.org/ntsb/MKC80FA013

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3703  79/12/11 NR.LEE'S SUMMIT,MO    PIPER PA-31         CR-  0  0  1  COMMERCIAL                ATP,FLIGHT INSTR., AGE
        TIME - 1000                    N7511L              PX-  0  0  4  AIR TAXI-PASSG            34, 2200 TOTAL HOURS, 55
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          WICHITA,KS                 LEE'S SUMMIT,MO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: NORMAL CRUISE
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PERSONNEL - WEATHER PERSONNEL: INCORRECT WEATHER FORECAST
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
           WEATHER - DOWNDRAFT,UPDRAFTS
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
        FACTOR(S)
           AIRFRAME - WINGS: SKIN AND ATTACHMENTS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - WEATHER CONSIDERABLY WORSE THAN FORECAST
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  1700
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1 MILE OR LESS                                           RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          UNKNOWN/NOT REPORTED                                      34
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          335                                                       15
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      IFR
        REMARKS- WINGS DMGD DRG RECOVERY FRM TURBC UPSET.LNDD OK.TURBC NOT FORECASTED.
```

## Aircraft

- Registration: [N7511L](https://openairdocs.org/deregistered/N7511L-2008-05-20), registration cancelled 2008-05-20, S/N 31-837, built 1972 (OpenAirDocs)
- Reported make and model: PIPER PA-31
- Registry model: [Piper PA-31-310](https://openairdocs.org/model/piper-pa-31-310) (registry code 7103102) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mccomas Lee'S Sum

## 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 19791211043049A](https://openairdocs.org/incident/19791211043049A), Dec 11, 1979: Piper PA31300, Lees Summit, MO, Substantial damage. Encountered unforecast severe up and down drafts. Aircraft exceeded red line in uncontrolled dive. Wrinkled wings.

## Other investigations on N7511L (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 CHI82DA050](https://openairdocs.org/ntsb/CHI82DA050), Feb 16, 1982: Piper PA-31-310 (N7511L), East Saint Loui, IL, 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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