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Pilot of ambiguity small transport forgot to set altimeters crossing the transition level approaching den. Error discovered at 9000'.
| Attributes | |
| ACN | 125565 |
| Time | |
| Date | 198910 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : den |
| State Reference | CO |
| Altitude | msl bound lower : 9000 msl bound upper : 9600 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv tracon : den |
| Operator | general aviation : instructional |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 60 flight time total : 4000 flight time type : 100 |
| ASRS Report | 125565 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : undershoot |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After being cleared for descent from 25,000' to 17,000' the copilot started the descent and approach checklists. I stopped the copilot at the altimeter setting because we levelled at FL190. When cleared to descend to 11,000' we never resumed the checklist. We were then cleared to 9000'. When level there, we realized that we had not completed the checklist and the altimeters were set at 29.92 the local altimeter was 30.50 that day, meaning each time we leveled off, we had been 580' above our assigned altitude. Recommendation, when you interrupt a checklist the non flying pilot should keep the checklist in his hand to remind him that it has not been completed.
Original NASA ASRS Text
Title: PLT OF AMB SMT FORGOT TO SET ALTIMETERS CROSSING THE TRANSITION LEVEL APCHING DEN. ERROR DISCOVERED AT 9000'.
Narrative: AFTER BEING CLRED FOR DSCNT FROM 25,000' TO 17,000' THE COPLT STARTED THE DSCNT AND APCH CHECKLISTS. I STOPPED THE COPLT AT THE ALTIMETER SETTING BECAUSE WE LEVELLED AT FL190. WHEN CLRED TO DSND TO 11,000' WE NEVER RESUMED THE CHECKLIST. WE WERE THEN CLRED TO 9000'. WHEN LEVEL THERE, WE REALIZED THAT WE HAD NOT COMPLETED THE CHECKLIST AND THE ALTIMETERS WERE SET AT 29.92 THE LCL ALTIMETER WAS 30.50 THAT DAY, MEANING EACH TIME WE LEVELED OFF, WE HAD BEEN 580' ABOVE OUR ASSIGNED ALT. RECOMMENDATION, WHEN YOU INTERRUPT A CHECKLIST THE NON FLYING PLT SHOULD KEEP THE CHECKLIST IN HIS HAND TO REMIND HIM THAT IT HAS NOT BEEN COMPLETED.
Data retrieved from NASA's ASRS site as of August 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.