<< >> NASA ASRS Report 167038, December 1990

Air carrier medium large transport makes a fly-by tower for a gear check after nose gear light fails to illuminate after gear down.

Attributes
ACN	167038
Time
Date	199012
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : iah
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 1500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : iah artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach landing other other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 11000 flight time type : 8000
ASRS Report	167038
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Msy-iah, regular scheduled flight was normal until on final approach segment. Landing gear nose wheel did not illuminate as normal. Gear was recycled and again unsafe. Sector 3, page 28 abnormal fcm complied with. Neither captain nor first officer could positively confirm down and locked position due to dirt and poor visibility. After communicating with iah maintenance, we checked to do a low approach fly-by with tower and maintenance personnel observing. Reported gear position normal for landing. We declared an emergency condition and requested equipment standing by. Normal approach was then executed with normal landing, then inserted all 3 gear pins for taxi in to gate area.

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Original NASA ASRS Text

Title: ACR MLG MAKES A FLY-BY TWR FOR A GEAR CHECK AFTER NOSE GEAR LIGHT FAILS TO ILLUMINATE AFTER GEAR DOWN.

Narrative: MSY-IAH, REGULAR SCHEDULED FLT WAS NORMAL UNTIL ON FINAL APCH SEGMENT. LNDG GEAR NOSE WHEEL DID NOT ILLUMINATE AS NORMAL. GEAR WAS RECYCLED AND AGAIN UNSAFE. SECTOR 3, PAGE 28 ABNORMAL FCM COMPLIED WITH. NEITHER CAPT NOR F/O COULD POSITIVELY CONFIRM DOWN AND LOCKED POS DUE TO DIRT AND POOR VISIBILITY. AFTER COMMUNICATING WITH IAH MAINT, WE CHKED TO DO A LOW APCH FLY-BY WITH TWR AND MAINT PERSONNEL OBSERVING. RPTED GEAR POS NORMAL FOR LNDG. WE DECLARED AN EMER CONDITION AND REQUESTED EQUIP STANDING BY. NORMAL APCH WAS THEN EXECUTED WITH NORMAL LNDG, THEN INSERTED ALL 3 GEAR PINS FOR TAXI IN TO GATE AREA.

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.