A DC9 crew, crossing the FAF to runway 22R at dtw, on GS, were approximately 400 ft higher than the ...

Attributes
ACN	533539
Time
Date	200112
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : cimex
State Reference	MI
Altitude	msl bound lower : 2281 msl bound upper : 2700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d21.tracon tower : jac.tower
Operator	common carrier : air carrier
Make Model Name	DC-9 30
Operating Under FAR Part	Part 121
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : d21.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 11000
ASRS Report	533539
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : crossing restriction not met non adherence : published procedure other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Navigational Facility Aircraft Airport
Primary Problem	Navigational Facility

Narrative:

Crossed the cimex fix (dtw runway 22R FAF) at an altitude of 2700 ft vice a charted altitude of 2281 ft, a difference of 419 ft. We double confirmed altimeter setting and verified with tower that the next two succeeding aircraft also crossed this fix at 2700 ft. This altitude difference is too much to accept, particularly given the other aircraft confirmed our suspicion. We checked the NOTAMS without finding a remark pertaining to runway 22R. Callback conversation with reporter revealed the following information: the reporter stated that on the day in question he made 2 approachs to the same runway with 2 different aircraft with the same result, 2700 ft over the FAF, (cimex) 419 ft higher than charted. Subsequent approachs to that runway have revealed normal altitude readouts throughout the approach including 2281 ft at 'cimex.'

Original NASA ASRS Text

Title: A DC9 CREW, XING THE FAF TO RWY 22R AT DTW, ON GS, WERE APPROX 400 FT HIGHER THAN THE CHARTED ALT.

Narrative: CROSSED THE CIMEX FIX (DTW RWY 22R FAF) AT AN ALT OF 2700 FT VICE A CHARTED ALT OF 2281 FT, A DIFFERENCE OF 419 FT. WE DOUBLE CONFIRMED ALTIMETER SETTING AND VERIFIED WITH TWR THAT THE NEXT TWO SUCCEEDING ACFT ALSO CROSSED THIS FIX AT 2700 FT. THIS ALT DIFFERENCE IS TOO MUCH TO ACCEPT, PARTICULARLY GIVEN THE OTHER ACFT CONFIRMED OUR SUSPICION. WE CHKED THE NOTAMS WITHOUT FINDING A REMARK PERTAINING TO RWY 22R. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THAT ON THE DAY IN QUESTION HE MADE 2 APCHS TO THE SAME RWY WITH 2 DIFFERENT ACFT WITH THE SAME RESULT, 2700 FT OVER THE FAF, (CIMEX) 419 FT HIGHER THAN CHARTED. SUBSEQUENT APCHS TO THAT RWY HAVE REVEALED NORMAL ALT READOUTS THROUGHOUT THE APCH INCLUDING 2281 FT AT 'CIMEX.'

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.

A DC9 crew, crossing the FAF to runway 22R at dtw, on GS, were approximately 400 ft higher than the charted altitude.