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A B767-300 experienced a leading edge flap asymmetry on short final while landing. Executed go around and subsequently landed.
| Attributes | |
| ACN | 653205 |
| Time | |
| Date | 200504 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 16000 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| 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 : first officer |
| ASRS Report | 653205 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 653197 |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : eicas |
| Resolutory Action | flight crew : executed go around flight crew : declared emergency flight crew : landed in emergency condition |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
On final approach (ILS runway 31R) at ZZZ; flying at 180 KIAS with flaps 15 degrees. Autoplt was engaged. I called for gear down and flaps 20 degrees. When the flaps approached 20; we received an EICAS message indicating asymmetric leading edge flaps. The captain directed a go around; which I accomplished while he notified tower of our problem and our go around. The captain declared an emergency and asked to be cleared out over the water at 2000 ft. The controller directed us to a heading of 220 degrees and altitude 2000 ft; which I flew. The relief pilot read the QRH procedure and the captain performed the steps while I continued to fly. When we were ready; we asked for the ILS to runway 31L and received vectors and clearance for the approach. ATC advised that crash fire rescue equipment was standing by for our landing. The approach was flown flaps 20 degrees per the QRH at flaps 30 degrees reference +20 KTS. Touchdown was uneventful followed by a normal taxi to the gate with the exception of leaving the flaps set at 20 degrees.
Original NASA ASRS Text
Title: A B767-300 EXPERIENCED A LEADING EDGE FLAP ASYMMETRY ON SHORT FINAL WHILE LNDG. EXECUTED GAR AND SUBSEQUENTLY LANDED.
Narrative: ON FINAL APCH (ILS RWY 31R) AT ZZZ; FLYING AT 180 KIAS WITH FLAPS 15 DEGS. AUTOPLT WAS ENGAGED. I CALLED FOR GEAR DOWN AND FLAPS 20 DEGS. WHEN THE FLAPS APCHED 20; WE RECEIVED AN EICAS MESSAGE INDICATING ASYMMETRIC LEADING EDGE FLAPS. THE CAPT DIRECTED A GAR; WHICH I ACCOMPLISHED WHILE HE NOTIFIED TWR OF OUR PROB AND OUR GAR. THE CAPT DECLARED AN EMER AND ASKED TO BE CLRED OUT OVER THE WATER AT 2000 FT. THE CTLR DIRECTED US TO A HDG OF 220 DEGS AND ALT 2000 FT; WHICH I FLEW. THE RELIEF PLT READ THE QRH PROC AND THE CAPT PERFORMED THE STEPS WHILE I CONTINUED TO FLY. WHEN WE WERE READY; WE ASKED FOR THE ILS TO RWY 31L AND RECEIVED VECTORS AND CLRNC FOR THE APCH. ATC ADVISED THAT CFR WAS STANDING BY FOR OUR LNDG. THE APCH WAS FLOWN FLAPS 20 DEGS PER THE QRH AT FLAPS 30 DEGS REF +20 KTS. TOUCHDOWN WAS UNEVENTFUL FOLLOWED BY A NORMAL TAXI TO THE GATE WITH THE EXCEPTION OF LEAVING THE FLAPS SET AT 20 DEGS.
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.