<< >> NASA ASRS Report 434704, April 1999

Nose gear annunciator light malfunction leads air carrier flight crew declare emergency, followed by normal landing.

Attributes
ACN	434704
Time
Date	199904
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lit.airport
State Reference	AR
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Beech 1900
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 22l
Flight Phase	landing : roll
Route In Use	approach : instrument precision
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 2400 flight time total : 3800 flight time type : 250
ASRS Report	434704
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : declared emergency flight crew : landed in emergency condition
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Nose gear annunciator did not illuminate when landing gear was extended normally. Crew cycled the landing gear 3 times in an attempt to check gear status, and get gear to extend normally. Nose gear annunciator would not illuminate. Crew reviewed and executed the abnormal manual gear extension checklist, declared an emergency so as to have crash fire rescue equipment personnel standing by, did a fly-by of the control tower for a visual confirmation of landing gear. Control tower reported nose gear appeared to be extended. The annunciator also showed that all gear lights were on. No other in-transit lights or aural warning horns were observed. Crew elected to land on runway and stop aircraft on runway and shut down engines. After a mechanic inspected nose gear and confirmed it was secure, passenger were deplaned and boarded onto a bus for transport to the terminal.

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Original NASA ASRS Text

Title: NOSE GEAR ANNUNCIATOR LIGHT MALFUNCTION LEADS ACR FLC DECLARE EMER, FOLLOWED BY NORMAL LNDG.

Narrative: NOSE GEAR ANNUNCIATOR DID NOT ILLUMINATE WHEN LNDG GEAR WAS EXTENDED NORMALLY. CREW CYCLED THE LNDG GEAR 3 TIMES IN AN ATTEMPT TO CHK GEAR STATUS, AND GET GEAR TO EXTEND NORMALLY. NOSE GEAR ANNUNCIATOR WOULD NOT ILLUMINATE. CREW REVIEWED AND EXECUTED THE ABNORMAL MANUAL GEAR EXTENSION CHKLIST, DECLARED AN EMER SO AS TO HAVE CFR PERSONNEL STANDING BY, DID A FLY-BY OF THE CTL TWR FOR A VISUAL CONFIRMATION OF LNDG GEAR. CTL TWR RPTED NOSE GEAR APPEARED TO BE EXTENDED. THE ANNUNCIATOR ALSO SHOWED THAT ALL GEAR LIGHTS WERE ON. NO OTHER IN-TRANSIT LIGHTS OR AURAL WARNING HORNS WERE OBSERVED. CREW ELECTED TO LAND ON RWY AND STOP ACFT ON RWY AND SHUT DOWN ENGS. AFTER A MECH INSPECTED NOSE GEAR AND CONFIRMED IT WAS SECURE, PAX WERE DEPLANED AND BOARDED ONTO A BUS FOR TRANSPORT TO THE TERMINAL.

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.