# Accident 20031216035399A: Beech 99, Mosinee, WI, December 16, 2003

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 16, 2003, 07:30 local time
- Place: Mosinee, WI
- Airport: Central Wisconsin
- Damage: Destroyed
- Phase of flight: Level Off Touchdown
- Operating rules: Air taxi and commuter (Part 135)
- Operator: KCQA
- Location: 44.7775° N, 89.6667° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=44.7775&lon=-89.6667&mi=10
- Aircraft: N399CZ, a cancelled registration (https://openairdocs.org/deregistered/N399CZ-2004-08-20) (OpenAirDocs)
- Registry model: Beech 99 (registry code 1154002, https://openairdocs.org/model/beech-99) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: BEECH 99
- Reported engine: PWA PT6A42
- Pilot flight hours: 9,000 total, 55 in this make and model, 70 in the last 90 days
- NTSB investigation: [NTSB CHI04LA042](https://openairdocs.org/ntsb/CHI04LA042) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20031216035399A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) PILOT FELT DME/LOC EQUIPMENT IN AIRCRAFT WAS INTERMITTENTLY INACCURATE. COMMENCED APPROACH WITHOUT BEING IN STABLE POSITION. PILOT FELT NAV INDICATIONS WERE CONFLICTING, AND TUNED VFR-ONLY GPS TO CROSS CHECK. AT SOME POINT LOC WENT FULL SCALE. AIRCRAFT DESCENDED OUT OF CLOUDS AT ABOUT 1100 TO 1300 AGL (3 MILES VIZ) AND PILOT USED GPS TO STEER TO AIRPORT. HE WAS APPROACHING HIGH AND AT AN ACUTE ANGLE TO R/W. HE BANKED SHAREPLY TO ALIGN AND CHOPPED POWER TO DESCEND. AT ROUNDOUT HE ATTEMPTED TO ADD POWER BUT P&W ENGINES RESPOND SLOWER THAN THE GARRETTS OF HIS EXPERIENCE. AIRCRAFT HIT HARD ON RMLG, BREAKING ENGINE FROM REAR SPAR MOUNT. PROPELLER HIT RUNWAY. AIRCRAFT WAS LOADED TO AFT CG; THERE WAS ONE-EIGHTS INCH OF ICE IN A 1.5-INCH WIDE STRIP FULL LENGTH OF WINGS AND HORIZONTAL STABILATOR. WIND WAS 330 12G17, LANDING R/W 08. RUNWAY WAS SNOW-COVERED, PLOWED. PILOT STATED HE WAS FATIGUED, HAVING LITTLE REST DURING LAST 4 DAYS, ONLY 4 HOURS SLEEP BEFORE THIS FLIGHT, AND WAS FIGHING A SINUS INFECTION. TRAINING RECORD INDICATES ABOUT 4 HOURS INCLUDING CHECKRIDE, UNDER REDUCED-TRAINING AUTHORIZATION. PILOT HAS NOT FLOWN OTHER TURBOPROP AIRCRAFT IN ABOUT FIVE YEARS. PILOT HAD BEEN FLYING FO FOR A CARGO 121 AIR CARRIER, IN A LARGE JET. HE HAS BEEN ON UNPAID LEAVE FOR OVER ONE YEAR DUE TO A DISPUTE AND HAS FLOWN VERY LITTLE DURING THIS PERIOD. HIS PREVIOUS TURBOPROP EXPERIENCE WAS IN GARRETT-POWERED AIRCRAFT, WHICH ARE QUITE DIFFERENT FROM P&W ENGINES. SHORTENED TRAINING IS BELIEVED TO BE A FACTOR. ^PRIVACY DATA OMITTED^

## The NTSB's investigation of this event (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 CHI04LA042](https://openairdocs.org/ntsb/CHI04LA042), Dec 16, 2003: Beech 99 (N399CZ), Mosinee, WI, substantial damage. Probable cause: The pilot's failure to maintain the proper descent rate and his inadequate flare.

## Other reports on N399CZ (1)

Matched to the same aircraft by N-number and date.

- [Incident 19990805030029I](https://openairdocs.org/incident/19990805030029I), Aug 5, 1999: Beech 99 (N399CZ), Mineral Point, WI, Minor damage. (-23) After landing the pilot tried to apply the brakes. The right hand brake system failed causing the aircraft to go off the end of the runway. The right…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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