<< >> NASA ASRS Report 808635, October 2008

B737-300 gear warning lights fail to respond to gear extension. Crew employs manual extension procedure and finds access doors difficult to open.

Attributes
ACN	808635
Time
Date	200810
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 2000
Environment
Flight Conditions	IMC
Weather Elements	other
Light	Daylight
Aircraft 1
Controlling Facilities	tower : zzz.tower tower : lax.tower
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	808635
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

Lowered landing gear -- no red or green lights illuminated. Performed light test and press-to-test with no lights illuminated as a result. Performed QRH procedure and contacted ZZZ maintenance. Pulled and reset landing gear system indication circuit breaker at maintenance's request with no effect. Continued with QRH which led to manual gear extension. Visually checked all 3 gear and locked through view ports. Landed normally. I suggest maintenance cycling the manual gear extension access doors in the flight deck once in a while. The opening apparatus was covered with crud and it took much longer than it should to coax the door open.

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Original NASA ASRS Text

Title: B737-300 GEAR WARNING LIGHTS FAIL TO RESPOND TO GEAR EXTENSION. CREW EMPLOYS MANUAL EXTENSION PROCEDURE AND FINDS ACCESS DOORS DIFFICULT TO OPEN.

Narrative: LOWERED LNDG GEAR -- NO RED OR GREEN LIGHTS ILLUMINATED. PERFORMED LIGHT TEST AND PRESS-TO-TEST WITH NO LIGHTS ILLUMINATED AS A RESULT. PERFORMED QRH PROC AND CONTACTED ZZZ MAINT. PULLED AND RESET LNDG GEAR SYS INDICATION CIRCUIT BREAKER AT MAINT'S REQUEST WITH NO EFFECT. CONTINUED WITH QRH WHICH LED TO MANUAL GEAR EXTENSION. VISUALLY CHKED ALL 3 GEAR AND LOCKED THROUGH VIEW PORTS. LANDED NORMALLY. I SUGGEST MAINT CYCLING THE MANUAL GEAR EXTENSION ACCESS DOORS IN THE FLT DECK ONCE IN A WHILE. THE OPENING APPARATUS WAS COVERED WITH CRUD AND IT TOOK MUCH LONGER THAN IT SHOULD TO COAX THE DOOR OPEN.

Data retrieved from NASA's ASRS site as of May 2009 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.