 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B767-300 experienced a leading edge flap asymmetry on short final while landing. Executed go around and subsequently landed with 6900 pounds of fuel.
| Attributes | |
| ACN | 640467 |
| Time | |
| Date | 200412 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 27l |
| Flight Phase | descent : approach landing : go around |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 161 flight time total : 10800 flight time type : 2300 |
| ASRS Report | 640467 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 180 flight time total : 15000 flight time type : 3000 |
| ASRS Report | 640498 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : eicas |
| Resolutory Action | flight crew : landed in emergency condition flight crew : executed missed approach flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft ATC Human Performance |
| Primary Problem | Aircraft |
Narrative:
On final ILS runway 27L at ZZZ, first officer (me) was flying. When flaps extended to 25 degrees, 'leading edge slat asymmetry' EICAS appeared. The pitch limit indicators on the electronic attitude direction indicator (eyebrows) were close to the pitch indicator (close to stick shaker). We elected to go around with 10000 pounds of fuel. As we retracted the flaps on level off, they stuck at 1 degree. We used flight manual procedure to alternate extend trailing edge devices to 20 degrees. We slowed to 150 KTS on final. ATC wanted 170 KTS, we wanted more spacing on aircraft in front of us. We declared emergency and landed uneventfully with 6900 pounds of fuel remaining. Whole event took about 15 mins. Due to busy terminal environment, compressed time with multiple checklists to accomplish, and passenger and flight attendants to brief, dispatch was notified.
Original NASA ASRS Text
Title: A B767-300 EXPERIENCED A LEADING EDGE FLAP ASYMMETRY ON SHORT FINAL WHILE LNDG. EXECUTED GAR AND SUBSEQUENTLY LANDED WITH 6900 LBS OF FUEL.
Narrative: ON FINAL ILS RWY 27L AT ZZZ, FO (ME) WAS FLYING. WHEN FLAPS EXTENDED TO 25 DEGS, 'LEADING EDGE SLAT ASYMMETRY' EICAS APPEARED. THE PITCH LIMIT INDICATORS ON THE ELECTRONIC ATTITUDE DIRECTION INDICATOR (EYEBROWS) WERE CLOSE TO THE PITCH INDICATOR (CLOSE TO STICK SHAKER). WE ELECTED TO GO AROUND WITH 10000 LBS OF FUEL. AS WE RETRACTED THE FLAPS ON LEVEL OFF, THEY STUCK AT 1 DEG. WE USED FLT MANUAL PROC TO ALTERNATE EXTEND TRAILING EDGE DEVICES TO 20 DEGS. WE SLOWED TO 150 KTS ON FINAL. ATC WANTED 170 KTS, WE WANTED MORE SPACING ON ACFT IN FRONT OF US. WE DECLARED EMER AND LANDED UNEVENTFULLY WITH 6900 LBS OF FUEL REMAINING. WHOLE EVENT TOOK ABOUT 15 MINS. DUE TO BUSY TERMINAL ENVIRONMENT, COMPRESSED TIME WITH MULTIPLE CHKLISTS TO ACCOMPLISH, AND PAX AND FLT ATTENDANTS TO BRIEF, DISPATCH WAS NOTIFIED.
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.