|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1801 To 2400|
|Locale Reference||atc facility : dfw|
|Altitude||msl bound lower : 28600|
msl bound upper : 29000
|Controlling Facilities||artcc : zfw|
|Operator||general aviation : corporate|
|Make Model Name||Light Transport, Low Wing, 2 Turbojet Eng|
|Flight Phase||climbout : intermediate altitude|
|Route In Use||enroute : on vectors|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 127|
flight time total : 12615
flight time type : 4548
|Function||flight crew : first officer|
|Qualification||pilot : atp|
|Anomaly||altitude deviation : undershoot|
non adherence : clearance
other anomaly other
|Independent Detector||other controllera|
|Resolutory Action||controller : issued new clearance|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
Aircraft was cleared IFR dal to bdl. Altimeter setting at departure was 30.32. Aircraft cleared for the dal 6 departure to greenwood, miss. Takeoff was at XA47Z (47L). After takeoff aircraft was cleared to an easterly heading and we in turn made several intermediate level offs--5000', 11000', 13000', etc. Aircraft ultimately was cleared to FL290. Because we had been cleared to bdl on a route different than planned, the route was reviewed prior to takeoff. However, sometime during climb out, in an attempt to realign our cockpit paperwork to reflect the new routing, our full attention was somehow diverted. The after takeoff and climb checklist, a 10000' check and 18000' check were accomplished with 1 notable exception. Neither pilot set their respective altimeters nor the back up to 29.92 passing through FL180. Center advised we would have to remain at FL290 for a period due to crossing traffic at, I recall, FL310. Aircraft was leveled off at FL290 for a short period when we again requested clearance to climb to our filed altitude FL330. Request was made to ftw center. We were advised to change frequency to, I believe, either another ftw center controller or mem ATC. Center did clear us to FL330 and requested to know why we had leveled off 400' below FL290. It was at this time I realized failure to reset our altimeters was the cause of our inaccurate level off. Altimeters were reset to 29.92 climb to FL330 was accomplished ad flight continued west/O further incident.
Original NASA ASRS Text
Title: ALT DEVIATION--WRONG ALTIMETER SETTING.
Narrative: ACFT WAS CLRED IFR DAL TO BDL. ALTIMETER SETTING AT DEP WAS 30.32. ACFT CLRED FOR THE DAL 6 DEP TO GREENWOOD, MISS. TKOF WAS AT XA47Z (47L). AFTER TKOF ACFT WAS CLRED TO AN EASTERLY HDG AND WE IN TURN MADE SEVERAL INTERMEDIATE LEVEL OFFS--5000', 11000', 13000', ETC. ACFT ULTIMATELY WAS CLRED TO FL290. BECAUSE WE HAD BEEN CLRED TO BDL ON A ROUTE DIFFERENT THAN PLANNED, THE ROUTE WAS REVIEWED PRIOR TO TKOF. HOWEVER, SOMETIME DURING CLBOUT, IN AN ATTEMPT TO REALIGN OUR COCKPIT PAPERWORK TO REFLECT THE NEW ROUTING, OUR FULL ATTN WAS SOMEHOW DIVERTED. THE AFTER TKOF AND CLB CHKLIST, A 10000' CHK AND 18000' CHK WERE ACCOMPLISHED WITH 1 NOTABLE EXCEPTION. NEITHER PLT SET THEIR RESPECTIVE ALTIMETERS NOR THE BACK UP TO 29.92 PASSING THROUGH FL180. CENTER ADVISED WE WOULD HAVE TO REMAIN AT FL290 FOR A PERIOD DUE TO XING TFC AT, I RECALL, FL310. ACFT WAS LEVELED OFF AT FL290 FOR A SHORT PERIOD WHEN WE AGAIN REQUESTED CLRNC TO CLB TO OUR FILED ALT FL330. REQUEST WAS MADE TO FTW CENTER. WE WERE ADVISED TO CHANGE FREQ TO, I BELIEVE, EITHER ANOTHER FTW CENTER CTLR OR MEM ATC. CENTER DID CLR US TO FL330 AND REQUESTED TO KNOW WHY WE HAD LEVELED OFF 400' BELOW FL290. IT WAS AT THIS TIME I REALIZED FAILURE TO RESET OUR ALTIMETERS WAS THE CAUSE OF OUR INACCURATE LEVEL OFF. ALTIMETERS WERE RESET TO 29.92 CLB TO FL330 WAS ACCOMPLISHED AD FLT CONTINUED W/O FURTHER INCIDENT.
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.