N974BC accident

NTSB ERA13CA044 · 2012-10-20 · Miami, FL · near TMB

Docket — crew, injuries and powerplant

Summary

According to the flight instructor, he was demonstrating to a student pilot the technique required to land the airplane on a short runway over a 50-foot obstacle. About 50 feet over the runway, at an airspeed of 60 knots, with flaps fully deployed, the instructor reduced the throttle to idle and pitched the nose down to "increase airspeed" and flare the airplane before touchdown. Immediately after reducing the engine power to idle, the airplane "sunk," and the instructor responded with a full throttle application. However, the airplane was "too close to the ground," and the engine did not respond in time to prevent a hard landing, which resulted in substantial damage to the engine firewall. The instructor reported that there were no mechanical malfunctions or failures that would have precluded normal operation of the airplane.

Full narrative

According to the flight instructor, he was demonstrating the technique required to land the airplane over a 50-foot obstacle to a short runway. At 50 feet over the runway, 60 knots airspeed, with flaps deployed, he reduced the throttle to idle and pitched the nose down to "increase airspeed" and flare the airplane prior to touchdown. Immediately after reducing the engine power to idle, the airplane "sunk" and the instructor responded with a full-throttle application. The airplane was "too close to the ground" and the engine did not respond in time to prevent a hard landing, which resulted in substantial damage to the engine firewall. The instructor reported that there were no mechanical malfunctions or failures that would have precluded normal operation of the airplane.

Probable cause

The flight instructor's improper power management during a steep, obstacle-clearance approach, which resulted in a hard landing. The National Transportation Safety Board determined the probable cause of this accident.

Circumstances

Event type
Accident
Highest injury
None
Weather conditions
Visual Meteorological Cond
Light condition
Day
Sky condition
NONE
Ceiling (ft)
0
Visibility (sm)
9
Wind direction
0
Temperature (F)
73
Nearest airport
Kendall Tamiami
Distance from field
1.0
Airport elevation
10

Aircraft

RegistrationMakeModelDamageFAR part
N974BC — — SUBS 091

Sequence of events

#OccurrencePhase
1 Landing-flare/touchdown Hard landing defining Cruise

Findings

Finding
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Landing flare-Incorrect use/operation cause
Personnel issues-Action/decision-Action-Delayed action-Instructor/check pilot cause
Aircraft-Aircraft structures-Fuselage-Gear attach fittings (on fus)-Capability exceeded factor