<< >> NASA ASRS Report 522870, August 2001

A B737 flight crew experienced a malfunction of the landing gear on extension that went away after they tapped the gear handle.

Attributes
ACN	522870
Time
Date	200108
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cyvr.airport
State Reference	BC
Altitude	agl single value : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	B737-300
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 113 flight time total : 6500 flight time type : 113
ASRS Report	522870
Events
Anomaly	aircraft equipment problem : less severe
Resolutory Action	aircraft : equipment problem dissipated
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Nose gear failed to extend initially when gear handle was selected to down position. After gear handle was tapped, nose gear extended and a normal gear down indication was noted. All of the above was accomplished approximately at the OM when the final descent checklist was called for. The entire process didn't take more than 15-20 seconds before the normal indication was noted, so the decision was made to continue for a normal landing. No other abnormalities were noted during landing rollout or taxi in.

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Original NASA ASRS Text

Title: A B737 FLT CREW EXPERIENCED A MALFUNCTION OF THE LNDG GEAR ON EXTENSION THAT WENT AWAY AFTER THEY TAPPED THE GEAR HANDLE.

Narrative: NOSE GEAR FAILED TO EXTEND INITIALLY WHEN GEAR HANDLE WAS SELECTED TO DOWN POS. AFTER GEAR HANDLE WAS TAPPED, NOSE GEAR EXTENDED AND A NORMAL GEAR DOWN INDICATION WAS NOTED. ALL OF THE ABOVE WAS ACCOMPLISHED APPROX AT THE OM WHEN THE FINAL DSCNT CHKLIST WAS CALLED FOR. THE ENTIRE PROCESS DIDN'T TAKE MORE THAN 15-20 SECONDS BEFORE THE NORMAL INDICATION WAS NOTED, SO THE DECISION WAS MADE TO CONTINUE FOR A NORMAL LNDG. NO OTHER ABNORMALITIES WERE NOTED DURING LNDG ROLLOUT OR TAXI IN.

Data retrieved from NASA's ASRS site as of July 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.