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A descending B737-800 flight crew fails to reset their altimeter to local setting and has a traffic conflict with crossing traffic assigned an altitude 1000 ft below their assigned altitude 100 mi west of ewr, nj.
| Attributes | |
| ACN | 468940 |
| Time | |
| Date | 200004 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | intersection : hayed |
| State Reference | PA |
| Altitude | msl bound lower : 16500 msl bound upper : 17000 |
| Environment | |
| Flight Conditions | Marginal |
| Weather Elements | Turbulence |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc tower : sfo.tower |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Route In Use | arrival star : williams port |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 270 flight time total : 15000 flight time type : 5000 |
| ASRS Report | 468940 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : overshoot inflight encounter : turbulence non adherence : company policies non adherence : clearance non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | atc equipment : conflict alert atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa other flight crewb other other : flt crews |
| Resolutory Action | controller : issued advisory flight crew : returned to assigned altitude flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 2000 vertical : 500 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were descending to cross hayed intersection at FL190 on the williamsport arrival to ewr. It was moderate turbulence. Out of FL195 we were reclred to 17000 ft and acknowledged. We were distraction and failed to reset the altimeter to the new low setting of 29.42 and leveled at 17000 ft indicated. Upon receiving an RA on TCASII from crossing traffic we had in sight, the controller asked us our altitude. At that time, we had already reset the altimeter and were on our way back to 17000 ft. He said we were at 16500 ft which was right, but we said no, we were at 17000 ft. Apparently the crossing traffic had to descend after they received a TCASII RA. We proceeded to ewr normally and so did the other aircraft.
Original NASA ASRS Text
Title: A DSNDING B737-800 FLC FAILS TO RESET THEIR ALTIMETER TO LCL SETTING AND HAS A TFC CONFLICT WITH XING TFC ASSIGNED AN ALT 1000 FT BELOW THEIR ASSIGNED ALT 100 MI W OF EWR, NJ.
Narrative: WE WERE DSNDING TO CROSS HAYED INTXN AT FL190 ON THE WILLIAMSPORT ARR TO EWR. IT WAS MODERATE TURB. OUT OF FL195 WE WERE RECLRED TO 17000 FT AND ACKNOWLEDGED. WE WERE DISTR AND FAILED TO RESET THE ALTIMETER TO THE NEW LOW SETTING OF 29.42 AND LEVELED AT 17000 FT INDICATED. UPON RECEIVING AN RA ON TCASII FROM XING TFC WE HAD IN SIGHT, THE CTLR ASKED US OUR ALT. AT THAT TIME, WE HAD ALREADY RESET THE ALTIMETER AND WERE ON OUR WAY BACK TO 17000 FT. HE SAID WE WERE AT 16500 FT WHICH WAS RIGHT, BUT WE SAID NO, WE WERE AT 17000 FT. APPARENTLY THE XING TFC HAD TO DSND AFTER THEY RECEIVED A TCASII RA. WE PROCEEDED TO EWR NORMALLY AND SO DID THE OTHER ACFT.
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.