An unauthorized uncoord turn and altitude deviation occurs when the pilots of an M20 do not adhere to good ATC practices during a procedure turn and descent into baf, ma.

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Attributes
ACN	538638
Time
Date	200202
Day	Wed
Local Time Of Day	1201 To 1800
Place
State Reference	MA
Altitude	msl bound lower : 1800 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : y90.tracon tower : baf.tower
Operator	general aviation : instructional
Make Model Name	M-20 J (201)
Operating Under FAR Part	Part 91
Flight Phase	descent : holding
Route In Use	approach : instrument non precision arrival : holding pattern
Flight Plan	IFR
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : instrument pilot : multi engine pilot : cfi pilot : commercial
Experience	flight time last 90 days : 93 flight time total : 1146 flight time type : 65
ASRS Report	538638
Person 2
Affiliation	other
Function	flight crew : single pilot instruction : trainee
Events
Anomaly	altitude deviation : overshoot altitude deviation : crossing restriction not met non adherence : published procedure non adherence : clearance non adherence : far other spatial deviation
Independent Detector	other controllera other controllerb
Resolutory Action	controller : issued advisory
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were cleared for the full VOR 20 approach to westfield airport (baf) by bdl approach, but restr to 2500 ft MSL until established on final inbound. We crossed the IAF at 4000 ft MSL and proceeded to descend in the procedure turn. At this time, bdl approach handed us off to westfield tower. Once established inbound, we were still at 3000 ft MSL and knew we would be unable to descend to 2100 ft MSL, the minimum crossing altitude at the FAF. We forgot that we were supposed to advise ATC if we needed additional turns in the hold as stated in aim. So we proceeded to execute another turn in the hold to descend to 2500 ft MSL, then 2100 ft MSL when established on final, without notifying baf tower. Baf tower informed us of our mistake when bdl approach advised them of our deviation. Startled by this, I failed to notice my student had descended to 1800 ft MSL at the FAF. The approach continued without incident.

Original NASA ASRS Text

Title: AN UNAUTH UNCOORD TURN AND ALTDEV OCCURS WHEN THE PLTS OF AN M20 DO NOT ADHERE TO GOOD ATC PRACTICES DURING A PROC TURN AND DSCNT INTO BAF, MA.

Narrative: WE WERE CLRED FOR THE FULL VOR 20 APCH TO WESTFIELD ARPT (BAF) BY BDL APCH, BUT RESTR TO 2500 FT MSL UNTIL ESTABLISHED ON FINAL INBOUND. WE CROSSED THE IAF AT 4000 FT MSL AND PROCEEDED TO DSND IN THE PROC TURN. AT THIS TIME, BDL APCH HANDED US OFF TO WESTFIELD TWR. ONCE ESTABLISHED INBOUND, WE WERE STILL AT 3000 FT MSL AND KNEW WE WOULD BE UNABLE TO DSND TO 2100 FT MSL, THE MINIMUM XING ALT AT THE FAF. WE FORGOT THAT WE WERE SUPPOSED TO ADVISE ATC IF WE NEEDED ADDITIONAL TURNS IN THE HOLD AS STATED IN AIM. SO WE PROCEEDED TO EXECUTE ANOTHER TURN IN THE HOLD TO DSND TO 2500 FT MSL, THEN 2100 FT MSL WHEN ESTABLISHED ON FINAL, WITHOUT NOTIFYING BAF TWR. BAF TWR INFORMED US OF OUR MISTAKE WHEN BDL APCH ADVISED THEM OF OUR DEV. STARTLED BY THIS, I FAILED TO NOTICE MY STUDENT HAD DSNDED TO 1800 FT MSL AT THE FAF. THE APCH CONTINUED WITHOUT INCIDENT.

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.