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|
Attributes | |
ACN | 87058 |
Time | |
Date | 198805 |
Day | Sat |
Local Time Of Day | 1801 To 2400 |
Place | |
Locale Reference | atc facility : djb |
State Reference | OH |
Altitude | msl bound lower : 25000 msl bound upper : 25000 |
Environment | |
Flight Conditions | Mixed |
Light | Night |
Aircraft 1 | |
Controlling Facilities | artcc : zob |
Operator | common carrier : air carrier |
Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
Flight Phase | descent other |
Route In Use | enroute airway : zob |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : flight engineer pilot : cfi pilot : atp |
Experience | flight time last 90 days : 163 flight time total : 4760 flight time type : 350 |
ASRS Report | 87058 |
Person 2 | |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Events | |
Anomaly | altitude deviation : crossing restriction not met non adherence : clearance |
Independent Detector | other controllera |
Resolutory Action | controller : issued new clearance other |
Consequence | Other |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
Flight was positioned over dryer VORTAC at approximately FL250 when cleared by ATC to cross 'tripe' intersection at and maintain 12000 MSL. The captain and first officer using there own charts located 'tripe' fix via dryer VORTAC 314 degree radial at 89 DME from dryer. The error has been made, the correct DME is 43 from dryer VORTAC. ATC questioned flight if able to make crossing restriction, 36 DME from dryer level at FL250. Flight acknowledged tripe is 89 DME out of dryer. ATC instructed flight you only have 7 NM till 'tripe' intersection, but no problem your revised clearance is radar vectors detroit turn right heading 360 degree descend and maintain 12000 MSL. Contributing factors : night time, light turbulence and congested low altitude enroute charts make it difficult to read. Corrective action: the use of STAR's and profile descent's can help prevent these errors.
Original NASA ASRS Text
Title: MISREAD NAV AND MISSED CROSSING RESTRICTION ASSUMED DME DISTANCE 89 VERSUS 43.
Narrative: FLT WAS POSITIONED OVER DRYER VORTAC AT APPROX FL250 WHEN CLRED BY ATC TO CROSS 'TRIPE' INTERSECTION AT AND MAINTAIN 12000 MSL. THE CAPT AND F/O USING THERE OWN CHARTS LOCATED 'TRIPE' FIX VIA DRYER VORTAC 314 DEG RADIAL AT 89 DME FROM DRYER. THE ERROR HAS BEEN MADE, THE CORRECT DME IS 43 FROM DRYER VORTAC. ATC QUESTIONED FLT IF ABLE TO MAKE XING RESTRICTION, 36 DME FROM DRYER LEVEL AT FL250. FLT ACKNOWLEDGED TRIPE IS 89 DME OUT OF DRYER. ATC INSTRUCTED FLT YOU ONLY HAVE 7 NM TILL 'TRIPE' INTERSECTION, BUT NO PROBLEM YOUR REVISED CLRNC IS RADAR VECTORS DETROIT TURN RIGHT HEADING 360 DEG DESCEND AND MAINTAIN 12000 MSL. CONTRIBUTING FACTORS : NIGHT TIME, LIGHT TURBULENCE AND CONGESTED LOW ALT ENROUTE CHARTS MAKE IT DIFFICULT TO READ. CORRECTIVE ACTION: THE USE OF STAR'S AND PROFILE DESCENT'S CAN HELP PREVENT THESE ERRORS.
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.