37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 321760 |
Time | |
Date | 199511 |
Day | Sun |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : slc |
State Reference | UT |
Altitude | agl bound lower : 1000 agl bound upper : 1000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tracon : slc tower : pit |
Operator | common carrier : air carrier |
Make Model Name | B737-300 |
Operating Under FAR Part | Part 121 |
Navigation In Use | Other Other |
Flight Phase | climbout : initial ground : preflight |
Route In Use | departure other departure sid : sid enroute : on vectors |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | other other : other pilot : atp pilot : cfi pilot : commercial |
Experience | flight time last 90 days : 80 flight time total : 12000 flight time type : 4000 |
ASRS Report | 321760 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Events | |
Anomaly | other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | controller : issued new clearance other |
Consequence | faa : reviewed incident with flight crew |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
We were filed 'slc slc 094 mtu 303 mtu, ALS, ama, mqp, tornn, iah.' the pre departure clearance had that routing, but we failed to see the addition of 'ffu 3, hve, cim, ama...' after departure, the controller cleared us to ffu, then continue the ffu 3 departure. The captain told the controller initially that we did not have that clearance, believing the filed plan as also being the ATC clearance plan. Another check of the pre departure clearance revealed the misread part (ffu 3 hve, dvc, cim, ama). After a vector direct to ffu (which is actually part of the ffu 3 departure procedure) and reading-following the ffu 3 departure, the flight continued uneventfully. The problem arose from a misinterpretation of the written pre departure clearance clearance combined with the filed route (all being printed in the same block of space with no delineation separating the two). It would be much clrer if this ATC clearance stood alone without any other form of routing written by it. If it is 'as filed,' just print 'as filed,' if it is amended say so. All it takes is a printer weak on ink and you can miss some DOT or dash. Callback conversation with reporter revealed the following information: the reporter flies the B737-300. He understands that the pre departure clearance format is set by his air carrier and he has tried to get it to standardize. The crew was surprised by TRACON giving a ffu 3 SID. There was no track deviation or loss of sep. The captain called slc TRACON later to determine this. The reporter is concerned that there are so many formats of the pre departure clearance and the difficulty of finding the latest information.
Original NASA ASRS Text
Title: A RPTR WAS SURPRISED BY TRACON DEP CTL WHEN A SID WAS ISSUED ON INITIAL CLB.
Narrative: WE WERE FILED 'SLC SLC 094 MTU 303 MTU, ALS, AMA, MQP, TORNN, IAH.' THE PDC HAD THAT ROUTING, BUT WE FAILED TO SEE THE ADDITION OF 'FFU 3, HVE, CIM, AMA...' AFTER DEP, THE CTLR CLRED US TO FFU, THEN CONTINUE THE FFU 3 DEP. THE CAPT TOLD THE CTLR INITIALLY THAT WE DID NOT HAVE THAT CLRNC, BELIEVING THE FILED PLAN AS ALSO BEING THE ATC CLRNC PLAN. ANOTHER CHK OF THE PDC REVEALED THE MISREAD PART (FFU 3 HVE, DVC, CIM, AMA). AFTER A VECTOR DIRECT TO FFU (WHICH IS ACTUALLY PART OF THE FFU 3 DEP PROC) AND READING-FOLLOWING THE FFU 3 DEP, THE FLT CONTINUED UNEVENTFULLY. THE PROB AROSE FROM A MISINTERPRETATION OF THE WRITTEN PDC CLRNC COMBINED WITH THE FILED ROUTE (ALL BEING PRINTED IN THE SAME BLOCK OF SPACE WITH NO DELINEATION SEPARATING THE TWO). IT WOULD BE MUCH CLRER IF THIS ATC CLRNC STOOD ALONE WITHOUT ANY OTHER FORM OF ROUTING WRITTEN BY IT. IF IT IS 'AS FILED,' JUST PRINT 'AS FILED,' IF IT IS AMENDED SAY SO. ALL IT TAKES IS A PRINTER WEAK ON INK AND YOU CAN MISS SOME DOT OR DASH. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR FLIES THE B737-300. HE UNDERSTANDS THAT THE PDC FORMAT IS SET BY HIS ACR AND HE HAS TRIED TO GET IT TO STANDARDIZE. THE CREW WAS SURPRISED BY TRACON GIVING A FFU 3 SID. THERE WAS NO TRACK DEV OR LOSS OF SEP. THE CAPT CALLED SLC TRACON LATER TO DETERMINE THIS. THE RPTR IS CONCERNED THAT THERE ARE SO MANY FORMATS OF THE PDC AND THE DIFFICULTY OF FINDING THE LATEST INFO.
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.