37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 92700 |
Time | |
Date | 198808 |
Day | Sat |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | atc facility : lax |
State Reference | CA |
Altitude | msl bound lower : 9500 msl bound upper : 10000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tracon : lax tracon : ont |
Operator | common carrier : air carrier |
Make Model Name | Medium Large Transport |
Flight Phase | climbout : intermediate altitude climbout : initial |
Route In Use | departure other departure sid : sid |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Experience | flight time last 90 days : 120 flight time total : 14000 flight time type : 1500 |
ASRS Report | 92700 |
Person 2 | |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : instrument |
Events | |
Anomaly | other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | none taken : anomaly accepted |
Consequence | Other |
Supplementary | |
Primary Problem | ATC Human Performance |
Air Traffic Incident | other |
Situations | |
ATC Facility | procedure or policy : unspecified |
Narrative:
Background: it has been my experience that the usual sequence occurs. After takeoff, fly heading maintain 2000'. Climb and maintain 13000'. About 3500' cleared left turn direct lax VOR, then on course. About 2/3 of the time, the clearance includes cross lax at or above 10000'. On flight lax-las, the above sequence occurred except that a crossing restriction was not issued. The left turn was made at 200-210 KTS. I had been paying close attention to the clrncs and verified with the first officer that a crossing restriction had not been issued. After rolling out direct lax, it was apparent we would not cross at or above 10000' west/O a zoom maneuver. I called lax departure to confirm that there was no crossing restriction. He replied, 'it's on the SID.' I said, 'the SID only says to expect it.' he said, 'it doesn't matter, there's no traffic.' we crossed at approximately 9500'. After consulting the aim, I found no guidance for this situation. The controller considered the restriction mandatory. I considered it not mandatory unless stated. The question is, 'who is right?' also, how close can ATC let you get to an expect crossing restriction and then issue it? Even if the restriction was mandatory, after being cleared to 2000' initially, then reclred to 13000', the restriction would have to be restated.
Original NASA ASRS Text
Title: ACR MLG QUERIED LAX DEP ON NOT RECEIVING 10000' CROSSING RESTRICTION. PLT TOLD, 'IT'S ON THE SID.'
Narrative: BACKGROUND: IT HAS BEEN MY EXPERIENCE THAT THE USUAL SEQUENCE OCCURS. AFTER TKOF, FLY HDG MAINTAIN 2000'. CLB AND MAINTAIN 13000'. ABOUT 3500' CLRED LEFT TURN DIRECT LAX VOR, THEN ON COURSE. ABOUT 2/3 OF THE TIME, THE CLRNC INCLUDES CROSS LAX AT OR ABOVE 10000'. ON FLT LAX-LAS, THE ABOVE SEQUENCE OCCURRED EXCEPT THAT A XING RESTRICTION WAS NOT ISSUED. THE LEFT TURN WAS MADE AT 200-210 KTS. I HAD BEEN PAYING CLOSE ATTN TO THE CLRNCS AND VERIFIED WITH THE F/O THAT A XING RESTRICTION HAD NOT BEEN ISSUED. AFTER ROLLING OUT DIRECT LAX, IT WAS APPARENT WE WOULD NOT CROSS AT OR ABOVE 10000' W/O A ZOOM MANEUVER. I CALLED LAX DEP TO CONFIRM THAT THERE WAS NO XING RESTRICTION. HE REPLIED, 'IT'S ON THE SID.' I SAID, 'THE SID ONLY SAYS TO EXPECT IT.' HE SAID, 'IT DOESN'T MATTER, THERE'S NO TFC.' WE CROSSED AT APPROX 9500'. AFTER CONSULTING THE AIM, I FOUND NO GUIDANCE FOR THIS SITUATION. THE CTLR CONSIDERED THE RESTRICTION MANDATORY. I CONSIDERED IT NOT MANDATORY UNLESS STATED. THE QUESTION IS, 'WHO IS RIGHT?' ALSO, HOW CLOSE CAN ATC LET YOU GET TO AN EXPECT XING RESTRICTION AND THEN ISSUE IT? EVEN IF THE RESTRICTION WAS MANDATORY, AFTER BEING CLRED TO 2000' INITIALLY, THEN RECLRED TO 13000', THE RESTRICTION WOULD HAVE TO BE RESTATED.
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.