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FTW85FA088 · Mooney M20J

26 Dec 1984 · San Antonio, TX, United States

Mooney M20J · Accident: loss of control in flight en route

From an unrecorded airport to T02 · LAPORTE, TX

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Event

NTSB case
FTW85FA088
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
4 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Instrument Meteorological Cond

Mooney M20J

Aircraft type
Mooney M20
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N5681K
Operator
Unknown
Onboard fatalities
Unknown
Route
From not recordedTo T02 · LAPORTE, TX
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · climb to cruise
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Loss of control in flight
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Pilot in command › Flight into known adverse weather, intentional
  • Pilot in command › IFR procedure, not followed
  • Pilot in command › Overconfidence in personal ability

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

THE NON-INSTRUMENT RATED PLT OBTAINED A WX BRIEFING & FILED AN IFR FLT PLAN ALTHOUGH POOR WX CONDITIONS EXISTED (200 FT CEILING & ONE-HALF MI VISIBILITY) AT SAN ANTONIO. THE TOWER INSTRUCTIONS TO N5681K WERE TO FLY RWY HEADING (120 DEG) AFTER DEPARTURE, HOWEVER, WHEN THE ACFT MADE A LEFT TURN AFTER TAKEOFF, THE ACFT WAS INSTRUCTED TO TURN RT TO A HEADING OF 180 DEG. THE PLT ACKNOWLEDGED THE HEADING CHANGE BUT DID NOT COMPLY WITH THE INSTRUCTIONS. THIS WAS THE LAST CONTACT WITH THE PLT. DURING THE INVESTIGATION A COMPUTER-GENERATED GROUND TRACK REVEALED A LEFT TURN OF 495 DEG, FOLLOWED BY RT TURN OF 45 DEG WHICH WAS HELD FOR ABOUT ONE-HALF MIN & THEN ANOTHER RT TURN OF ABOUT 50 DEG BEFORE DISAPPEARING FROM RADAR.

Verbatim NTSB analysis from the NTSB dataset

Sources

NTSB record FTW85FA088
Event ID
20001214X41780
Case number
FTW85FA088
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: cf7775310fa8258480bfad3c4a6d3eddedb11ad69a6a563c0561eab41b14363d; retrieved 2026-09-21T05:11:47.865Z.