Practice engine fail approach and landing. Gear failed to extend. Practice engine fail approach and ...

Attributes
ACN	90693
Time
Date	198807
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : 2i4
State Reference	OH
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 100 flight time total : 835
ASRS Report	90693
Person 2
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	faa : investigated
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

The instrument pulled power back to idle on downwind (simulated engine out). Student turned base and put the gear handle in the down position and called out 3 green. When he had the runway made (base to final) he put down full flaps. He flared out over the runway and settled in gear up . The gear never came down and we never got a gear unsafe light or horn because of a blown circuit breaker (5 amp). After the plane was picked up the gear wouldn't come down or gear unsafe warning device activated. The 4 amp circuit breaker was then found blown. When reset the warning device activated and the gear came down and locked. I would suggest to keep this from happening again that the gear unsafe light and horn should never be put on the same circuit breaker as is the case of most aircraft or at least placarded to advise the crew. Another contributing factor was that the instrument pilot in the right seat must lean way over and up hand over light to really be certain of 3 green on a bright day.

Original NASA ASRS Text

Title: PRACTICE ENGINE FAIL APCH AND LNDG. GEAR FAILED TO EXTEND. PRACTICE ENGINE FAIL APCH AND LNDG. GEAR FAILED TO EXTEND. LANDED GEAR UP. LANDED GEAR UP.

Narrative: THE INSTR PULLED PWR BACK TO IDLE ON DOWNWIND (SIMULATED ENG OUT). STUDENT TURNED BASE AND PUT THE GEAR HANDLE IN THE DOWN POS AND CALLED OUT 3 GREEN. WHEN HE HAD THE RWY MADE (BASE TO FINAL) HE PUT DOWN FULL FLAPS. HE FLARED OUT OVER THE RWY AND SETTLED IN GEAR UP . THE GEAR NEVER CAME DOWN AND WE NEVER GOT A GEAR UNSAFE LIGHT OR HORN BECAUSE OF A BLOWN CB (5 AMP). AFTER THE PLANE WAS PICKED UP THE GEAR WOULDN'T COME DOWN OR GEAR UNSAFE WARNING DEVICE ACTIVATED. THE 4 AMP CB WAS THEN FOUND BLOWN. WHEN RESET THE WARNING DEVICE ACTIVATED AND THE GEAR CAME DOWN AND LOCKED. I WOULD SUGGEST TO KEEP THIS FROM HAPPENING AGAIN THAT THE GEAR UNSAFE LIGHT AND HORN SHOULD NEVER BE PUT ON THE SAME CB AS IS THE CASE OF MOST ACFT OR AT LEAST PLACARDED TO ADVISE THE CREW. ANOTHER CONTRIBUTING FACTOR WAS THAT THE INSTR PLT IN THE RIGHT SEAT MUST LEAN WAY OVER AND UP HAND OVER LIGHT TO REALLY BE CERTAIN OF 3 GREEN ON A BRIGHT DAY.

Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Practice engine fail approach and landing. Gear failed to extend. Practice engine fail approach and landing. Gear failed to extend. Landed gear up. Landed gear up.