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An A320 with duel lgciu failures executed a go around and working with maintenance was able to recover control. An emergency was declared.
| Attributes | |
| ACN | 681884 |
| Time | |
| Date | 200601 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 1500 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach landing : go around |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 1600 |
| ASRS Report | 681884 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : ecam and lgciu |
| Resolutory Action | controller : provided flight assist flight crew : executed go around flight crew : declared emergency flight crew : overcame equipment problem flight crew : landed in emergency condition |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
On climb out out of ZZZ; landing gear control and interfacility unit #2 ECAM was accomplished and inoperative components noted and reviewed for landing. Flight continued uneventful until 5 mi final when gear handle was lowered; ECAM landing gear control and interfacility unit #1 and landing gear control and interfacility unit #2 inoperative and ensuing degrades came up. 3 green landing gear indications were noted; however; a gravity extension is called for by checklist and a lot of related items came up. Captain elected to go around to fully review checklist; however; gear lever was not touched due to 3 green indications. Requested to hold overwater to accomplish checklist and maintenance and dispatch contacted. Fuel status approximately 6000 pounds. Maintenance directed circuit breaker cycling which eventually restored landing gear control and interfacility units; however; nosewheel steering inoperative. Maintenance advised we may need to stop on runway and get towed in. Passenger and flight attendants notified and a normal approach and landing accomplished. Captain was able to get off on high speed turnoff and stop aircraft uneventfully. Nosewheel steering switch recycled and nosewheel steering returned. Captain taxied aircraft to gate with no further delays. Arrived 19 mins later than scheduled with 3500 pounds fuel. Note: aircraft already had 9 deferred items before departure from ZZZ but none concerning gear.
Original NASA ASRS Text
Title: AN A320 WITH DUEL LGCIU FAILURES EXECUTED A GAR AND WORKING WITH MAINT WAS ABLE TO RECOVER CTL. AN EMER WAS DECLARED.
Narrative: ON CLBOUT OUT OF ZZZ; LNDG GEAR CTL AND INTERFAC UNIT #2 ECAM WAS ACCOMPLISHED AND INOP COMPONENTS NOTED AND REVIEWED FOR LNDG. FLT CONTINUED UNEVENTFUL UNTIL 5 MI FINAL WHEN GEAR HANDLE WAS LOWERED; ECAM LNDG GEAR CTL AND INTERFAC UNIT #1 AND LNDG GEAR CTL AND INTERFAC UNIT #2 INOP AND ENSUING DEGRADES CAME UP. 3 GREEN LNDG GEAR INDICATIONS WERE NOTED; HOWEVER; A GRAVITY EXTENSION IS CALLED FOR BY CHKLIST AND A LOT OF RELATED ITEMS CAME UP. CAPT ELECTED TO GO AROUND TO FULLY REVIEW CHKLIST; HOWEVER; GEAR LEVER WAS NOT TOUCHED DUE TO 3 GREEN INDICATIONS. REQUESTED TO HOLD OVERWATER TO ACCOMPLISH CHKLIST AND MAINT AND DISPATCH CONTACTED. FUEL STATUS APPROX 6000 LBS. MAINT DIRECTED CIRCUIT BREAKER CYCLING WHICH EVENTUALLY RESTORED LNDG GEAR CTL AND INTERFAC UNITS; HOWEVER; NOSEWHEEL STEERING INOP. MAINT ADVISED WE MAY NEED TO STOP ON RWY AND GET TOWED IN. PAX AND FLT ATTENDANTS NOTIFIED AND A NORMAL APCH AND LNDG ACCOMPLISHED. CAPT WAS ABLE TO GET OFF ON HIGH SPD TURNOFF AND STOP ACFT UNEVENTFULLY. NOSEWHEEL STEERING SWITCH RECYCLED AND NOSEWHEEL STEERING RETURNED. CAPT TAXIED ACFT TO GATE WITH NO FURTHER DELAYS. ARRIVED 19 MINS LATER THAN SCHEDULED WITH 3500 LBS FUEL. NOTE: ACFT ALREADY HAD 9 DEFERRED ITEMS BEFORE DEP FROM ZZZ BUT NONE CONCERNING GEAR.
Data retrieved from NASA's ASRS site as of January 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.