Narrative:

Crew reviewed departure procedure, even though it was not part of the clearance, making note of the 5750 ft restr before turning, which is essentially 400 ft AGL and a normal situation. Tower cleared flight for takeoff suffixed by the statement, 'adhere to noise abatement procedures,' which crew assumed was the 5750 ft turn restr. The verbiage on the 10-3A is vague and misleading concerning a hard and fast noise abatement procedure. Before switching to departure control frequency tower controller stated that the flight's turn was a little early, but that it was ok. Regardless, this procedure needs to be clarified and, if there really is a hard noise abatement procedure, it needs to be delineated in a clearer manner. See transcript from 10-3A albuquerque largo 2 departure: all aircraft fly assigned heading for vectors to filed/assigned route. Runway 8 departures, upon passing 5750 ft, turn left/right to assigned heading. When WX conditions are 5000 ft ceiling and 7 mi visibility or greater, for informal noise abatement: request turboprop and turbojet aircraft, except STOL aircraft, making a left turn from runway 8, to delay their turn until 13.5 DME from abq VOR. Expect clearance to filed altitude/flight level 5 mins after departure.

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Original NASA ASRS Text

Title: AN A306 CREW, DEP ABQ, TURNED PREMATURELY, NOT COMPLYING WITH THE INFORMAL NOISE ABATEMENT PROC.

Narrative: CREW REVIEWED DEP PROC, EVEN THOUGH IT WAS NOT PART OF THE CLRNC, MAKING NOTE OF THE 5750 FT RESTR BEFORE TURNING, WHICH IS ESSENTIALLY 400 FT AGL AND A NORMAL SIT. TWR CLRED FLT FOR TKOF SUFFIXED BY THE STATEMENT, 'ADHERE TO NOISE ABATEMENT PROCS,' WHICH CREW ASSUMED WAS THE 5750 FT TURN RESTR. THE VERBIAGE ON THE 10-3A IS VAGUE AND MISLEADING CONCERNING A HARD AND FAST NOISE ABATEMENT PROC. BEFORE SWITCHING TO DEP CTL FREQ TWR CTLR STATED THAT THE FLT'S TURN WAS A LITTLE EARLY, BUT THAT IT WAS OK. REGARDLESS, THIS PROC NEEDS TO BE CLARIFIED AND, IF THERE REALLY IS A HARD NOISE ABATEMENT PROC, IT NEEDS TO BE DELINEATED IN A CLEARER MANNER. SEE TRANSCRIPT FROM 10-3A ALBUQUERQUE LARGO 2 DEP: ALL ACFT FLY ASSIGNED HDG FOR VECTORS TO FILED/ASSIGNED RTE. RWY 8 DEPS, UPON PASSING 5750 FT, TURN L/R TO ASSIGNED HDG. WHEN WX CONDITIONS ARE 5000 FT CEILING AND 7 MI VISIBILITY OR GREATER, FOR INFORMAL NOISE ABATEMENT: REQUEST TURBOPROP AND TURBOJET ACFT, EXCEPT STOL ACFT, MAKING A L TURN FROM RWY 8, TO DELAY THEIR TURN UNTIL 13.5 DME FROM ABQ VOR. EXPECT CLRNC TO FILED ALT/FLT LEVEL 5 MINS AFTER DEP.

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.