Altitude crossing restr not met. Altitude deviation altitude undershot in descent.

Attributes
ACN	296372
Time
Date	199502
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : pie
State Reference	FL
Altitude	msl bound lower : 27000 msl bound upper : 29700
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx tracon : day
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : commercial pilot : instrument
Experience	flight time last 90 days : 150 flight time total : 6400 flight time type : 3441
ASRS Report	296372
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On feb/xx/95 from atl to rsw. We were issued a crossing altitude to cross pie VOR at 27000 ft. We were cruising at 33000 ft. I informed the captain of the crossing assignment well prior to pie, and he acknowledged. I was busy looking over the approach chart when I noticed we were about 8 DME north of pie VOR and still at 33000 ft. I immediately questioned the captain as to his intentions on descending. Unknown to me, he had tuned srq VOR into his radio and was basing his descent on srq VOR's DME. He instantly began a descent to 27000 ft. We were passing through 29700 ft. When center called and asked if we had a problem and to inform us that we were overhead the pie VOR. We stated that we were in our descent to 27000 ft and there were no more questions from center. He then transferred us to another frequency and controller. We reached 27000 ft approximately 7-8 DME past pie VOR. To my knowledge, there was no traffic conflict.

Original NASA ASRS Text

Title: ALT XING RESTR NOT MET. ALTDEV ALT UNDERSHOT IN DSCNT.

Narrative: ON FEB/XX/95 FROM ATL TO RSW. WE WERE ISSUED A XING ALT TO CROSS PIE VOR AT 27000 FT. WE WERE CRUISING AT 33000 FT. I INFORMED THE CAPT OF THE XING ASSIGNMENT WELL PRIOR TO PIE, AND HE ACKNOWLEDGED. I WAS BUSY LOOKING OVER THE APCH CHART WHEN I NOTICED WE WERE ABOUT 8 DME N OF PIE VOR AND STILL AT 33000 FT. I IMMEDIATELY QUESTIONED THE CAPT AS TO HIS INTENTIONS ON DSNDING. UNKNOWN TO ME, HE HAD TUNED SRQ VOR INTO HIS RADIO AND WAS BASING HIS DSCNT ON SRQ VOR'S DME. HE INSTANTLY BEGAN A DSCNT TO 27000 FT. WE WERE PASSING THROUGH 29700 FT. WHEN CTR CALLED AND ASKED IF WE HAD A PROB AND TO INFORM US THAT WE WERE OVERHEAD THE PIE VOR. WE STATED THAT WE WERE IN OUR DSCNT TO 27000 FT AND THERE WERE NO MORE QUESTIONS FROM CTR. HE THEN TRANSFERRED US TO ANOTHER FREQ AND CTLR. WE REACHED 27000 FT APPROX 7-8 DME PAST PIE VOR. TO MY KNOWLEDGE, THERE WAS NO TFC CONFLICT.

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.