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An overseas bound B767 flight crew experiences a map shift on their IRU and makes an overweight landing during a diversion to jfk, ny.
| Attributes | |
| ACN | 441169 |
| Time | |
| Date | 199906 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : rdv.airport |
| State Reference | NC |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : rdu.tower tower : ilm.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : relief pilot |
| Qualification | pilot : atp |
| ASRS Report | 441169 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 441170 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : fms other flight crewa other flight crewb |
| Resolutory Action | flight crew : landed as precaution flight crew : diverted to another airport flight crew : overrode automation |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
IRU shift, diversion to jfk. On takeoff from rdu, we think we had a map shift on the IRU's. We were 400 mi off track when airborne. We checked the position at the gate with the first officer reading gate position and captain and first officer verifying what was in the FMC. Landed jfk at 318000 pounds 200 ft rate of sink.
Original NASA ASRS Text
Title: AN OVERSEAS BOUND B767 FLC EXPERIENCES A MAP SHIFT ON THEIR IRU AND MAKES AN OVERWT LNDG DURING A DIVERSION TO JFK, NY.
Narrative: IRU SHIFT, DIVERSION TO JFK. ON TKOF FROM RDU, WE THINK WE HAD A MAP SHIFT ON THE IRU'S. WE WERE 400 MI OFF TRACK WHEN AIRBORNE. WE CHKED THE POS AT THE GATE WITH THE FO READING GATE POS AND CAPT AND FO VERIFYING WHAT WAS IN THE FMC. LANDED JFK AT 318000 LBS 200 FT RATE OF SINK.
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.