 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew of a widebody transport air carrier aircraft failed to reset altimeter during descent resulting in undershooting their assigned holding altitude.
| Attributes | |
| ACN | 258658 |
| Time | |
| Date | 199312 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : cvc airport : nrt |
| State Reference | FO |
| Altitude | msl bound lower : 11000 msl bound upper : 11260 |
| Environment | |
| Flight Conditions | IMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : nrt |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 18000 flight time type : 1500 |
| ASRS Report | 258658 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot non adherence : clearance non adherence : far non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 700 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
In the holding pattern at aries intersection on approach to nrt, japan, we observed another aircraft on TCASII showing plus 700 ft turning directly towards us. We discovered our altimeters were still set at 29.92, qnh was 30.18, which put us at 11260 ft MSL, other aircraft was at 12000 ft. We reset altimeters and descended to 11000 ft. Our checklist calls for resetting altimeters at FL180 on descent. Transition altitude in japan is FL140. In programming a last min holding pattern and deciding whether to proceed to our altitude, we missed resetting altimeter at FL140.
Original NASA ASRS Text
Title: FLC OF A WDB ACR ACFT FAILED TO RESET ALTIMETER DURING DSCNT RESULTING IN UNDERSHOOTING THEIR ASSIGNED HOLDING ALT.
Narrative: IN THE HOLDING PATTERN AT ARIES INTXN ON APCH TO NRT, JAPAN, WE OBSERVED ANOTHER ACFT ON TCASII SHOWING PLUS 700 FT TURNING DIRECTLY TOWARDS US. WE DISCOVERED OUR ALTIMETERS WERE STILL SET AT 29.92, QNH WAS 30.18, WHICH PUT US AT 11260 FT MSL, OTHER ACFT WAS AT 12000 FT. WE RESET ALTIMETERS AND DSNDED TO 11000 FT. OUR CHKLIST CALLS FOR RESETTING ALTIMETERS AT FL180 ON DSCNT. TRANSITION ALT IN JAPAN IS FL140. IN PROGRAMMING A LAST MIN HOLDING PATTERN AND DECIDING WHETHER TO PROCEED TO OUR ALT, WE MISSED RESETTING ALTIMETER AT FL140.
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.