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Accidents · NTSB ERA11FA133 · Final report

Potez-Air Fouga CM 170 MAGISTER accident near Kissimmee, Florida, February 2, 2011

On February 2, 2011 at about 10:29 pm local time, a Potez-Air Fouga CM 170 MAGISTER, registered N415FM, was substantially damaged in an accident during approach near Kissimmee, Florida (Kissimmee Gateway Airport). It was a flight test under general aviation rules (Part 91). 2 people were killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot/mechanic's improper decision to continue a tight-turning landing pattern after a loss of hydraulic pressure, and his subsequent failure to maintain adequate airspeed during that pattern, which resulted in an accelerated maneuver stall. Contributing to the accident was a loss of hydraulic pressure after the extension of the landing gear.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
February 2, 2011 · about 10:29 pm local time
Place
Kissimmee, Florida · Kissimmee Gateway Airport · map
Type
Accident
Injuries
2 people were killed.
Weather
visual conditions (good weather)
Aircraft
Potez-Air Fouga CM 170 MAGISTER
Registration
N415FM · no longer on the register · serial 415
Damage
Substantial damage
Flight
Flight test · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

After the repair of a number of hydraulic leaks, a post-maintenance check flight was conducted from the vintage jet trainer's home airport with a visiting pilot/mechanic and the pilot/owner onboard. After the airplane took off, it departed the airport traffic pattern for in-flight tests. About 11 minutes later, the airplane reentered the airport traffic pattern and completed a left, overhead, mid-field break about 600 feet above ground level (agl). A voice recognized as the pilot/mechanic's then advised the tower that the three landing gear were down and locked, and the airplane arrived at the abeam position about 500 feet agl and 215 knots. The airplane then eased out of the turn and briefly flew a straight course that angled toward the runway before commencing a sharp turn toward the runway with an observed 90-degree angle of bank. The airplane was then seen descending rapidly before pitching up, overshooting the extended runway centerline, nosing down, and impacting the ground. Both pilots were ejected when the airplane impacted the ground, and neither of the destroyed cockpits nor an airport security video could provide definitive evidence as to which pilot was in which seat. However, because the pilot/mechanic’s voice was on all radio transmissions, including a transmission that he was unfamiliar with the airport, it is likely that he was in the front seat and flying the airplane. Wreckage examination revealed that the airplane had impacted the ground in an approximately 45-degree left angle of bank, about 5 degrees nose-low. The landing gear were down and the push button selectors were in the "normal" position, indicating that landing gear were extended normally. The two left-wing flap segments were separated from the extensively damaged wing, and the differing cockpit wing flap indicators were unreliable due to cockpit and airplane damage. However, the two relatively intact right-wing flap segments were up and flush with the wing, consistent with the flaps being up at impact. The emergency airbrake selector was in the "out" position, indicating that the pilot/mechanic had recognized a loss of hydraulic pressure after lowering the landing gear, but before he could effectively deploy airbrakes or flaps. There are no means to lower flaps following a loss of hydraulic pressure. The pilot/mechanic should have extended the downwind leg for a flaps-up approach, per the abnormal procedures. However, he continued the high angle-of-bank, as-configured approach, but did not maintain sufficient airspeed to preclude an "accelerated maneuver stall."

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Sys/Comp malf/fail (non-power) during approach
  2. Aerodynamic stall/spin during approach defining event
  3. Loss of control in flight during approach
  4. Collision with terrain or object (not controlled flight into terrain) during uncontrolled descent

The NTSB's findings

  • cause Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Pilot
  • cause Personnel issues › Action/decision › Action › Incorrect action performance › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Airspeed › Not attained/maintained
  • factor Aircraft › Aircraft systems › Hydraulic power system › (general) › Not specified

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; instrument: airplane
  • Flight time: 8,300 hours in all
  • Medical certificate: Class 2 (without waivers/limitations)
  • Seat: frt
  • Injury: fatal

Other crew

  • Certificate: commercial pilot
  • Ratings: multi-engine land; multi-engine sea; single-engine land; single-engine sea; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
  • Flight time: 1,500 hours in all
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: rear
  • Injury: fatal

The aircraft

  • Maximum gross weight: 12,499 lb
  • Seats: 2
  • Landing gear: retractable
  • Engine 1: Turbomeca MARBORE IIC (turbojet); 0 hours total
  • Engine 2: Turbomeca MARBORE IIC (turbojet); 0 hours total

The flight

  • Departed from: ISM Kissimmee FL at 10:21 pm
  • Destination: ISM Kissimmee FL
  • Flight plan: none
  • Runway 24, 5,001 ft by 150 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 240° at 3 knots
  • Visibility: 10 statute miles
  • Sky: scat at 4,500 ft
  • Temperature: 77°F (25°C), dew point 66°F (19°C)
  • Altimeter: 30.11 inHg
  • Observation at 10:39 pm from ISM, 1 miles away

Injuries

FatalSeriousMinorNone
Flight crew2

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.