 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Medium large transport flight crew fails to reset altimeter when descending through FL180. Radar controller indicates they are not at assigned altitude.
| Attributes | |
| ACN | 366690 |
| Time | |
| Date | 199704 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : fjc |
| State Reference | PA |
| Altitude | msl bound lower : 12600 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| 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 : atp |
| Experience | flight time last 90 days : 170 flight time total : 4500 flight time type : 2600 |
| ASRS Report | 366690 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 13500 flight time type : 6000 |
| ASRS Report | 366411 |
| Events | |
| Anomaly | altitude deviation : overshoot other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : became reoriented 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:
On descent to 13000 ft on milton 1 arrival to lga, both pilots failed to reset altimeters to local barometric setting passing FL180. Both altimeters were set at 29.92 and the local altimeter was 29.48 which resulted in a 400 ft altitude deviation. Controller issued the local altimeter and stated there was no conflict! Contributing factors were a 2 pilot cockpit and an arrival with numerous VOR/radial changes.
Original NASA ASRS Text
Title: MLG FLC FAILS TO RESET ALTIMETER WHEN DSNDING THROUGH FL180. RADAR CTLR INDICATES THEY ARE NOT AT ASSIGNED ALT.
Narrative: ON DSCNT TO 13000 FT ON MILTON 1 ARR TO LGA, BOTH PLTS FAILED TO RESET ALTIMETERS TO LCL BAROMETRIC SETTING PASSING FL180. BOTH ALTIMETERS WERE SET AT 29.92 AND THE LCL ALTIMETER WAS 29.48 WHICH RESULTED IN A 400 FT ALTDEV. CTLR ISSUED THE LCL ALTIMETER AND STATED THERE WAS NO CONFLICT! CONTRIBUTING FACTORS WERE A 2 PLT COCKPIT AND AN ARR WITH NUMEROUS VOR/RADIAL CHANGES.
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.