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An air carrier F100 flight crew failed to set its altimeters to qnh departing FL180. They were about 300 ft high at 11000 ft. Error admitted.
| Attributes | |
| ACN | 342625 |
| Time | |
| Date | 199607 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : orw airport : pvd |
| State Reference | CT |
| Altitude | msl bound lower : 11000 msl bound upper : 18000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pvd |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 342625 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 342630 |
| Events | |
| Anomaly | altitude deviation : undershoot non adherence : published procedure non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On descent, cleared to level off at FL180. After being at FL180 for several mins, we were cleared to cross wipor at 11000 ft. We did not reset altimeters to qnh out of FL180. Handed off to pvd approach before wipor. Flew level at 11000 ft with altimeters set at qne for a couple of mins. Cleared to descend to 5000 ft. Discovered misset altimeters. We were about 300 ft high, altimeter setting was 30.27. Pvd approach never said anything. Misset altimeters were corrected as descent out of 11000 was begun. Obviously closer adherence to descent checklist would have prevented the incident. I believe the level off at FL180 threw off the normal flow of the descent.
Original NASA ASRS Text
Title: AN ACR F100 FLC FAILED TO SET ITS ALTIMETERS TO QNH DEPARTING FL180. THEY WERE ABOUT 300 FT HIGH AT 11000 FT. ERROR ADMITTED.
Narrative: ON DSCNT, CLRED TO LEVEL OFF AT FL180. AFTER BEING AT FL180 FOR SEVERAL MINS, WE WERE CLRED TO CROSS WIPOR AT 11000 FT. WE DID NOT RESET ALTIMETERS TO QNH OUT OF FL180. HANDED OFF TO PVD APCH BEFORE WIPOR. FLEW LEVEL AT 11000 FT WITH ALTIMETERS SET AT QNE FOR A COUPLE OF MINS. CLRED TO DSND TO 5000 FT. DISCOVERED MISSET ALTIMETERS. WE WERE ABOUT 300 FT HIGH, ALTIMETER SETTING WAS 30.27. PVD APCH NEVER SAID ANYTHING. MISSET ALTIMETERS WERE CORRECTED AS DSCNT OUT OF 11000 WAS BEGUN. OBVIOUSLY CLOSER ADHERENCE TO DSCNT CHKLIST WOULD HAVE PREVENTED THE INCIDENT. I BELIEVE THE LEVEL OFF AT FL180 THREW OFF THE NORMAL FLOW OF THE DSCNT.
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.