Narrative:

While executing an ILS approach to runway 21R at dtw, a before landing checklist was performed after a gear down selection was made. During the checklist procedure a discrepancy between the flap indicator and the flaps selected was discovered. A go around was initiated. Instructions were track localizer outbound, climb and maintain 3000 ft. The aircraft climbed to approximately 3400 ft before altitude was corrected/captured. ATC informed us traffic '10 O'clock, 2 mi at 4000 ft.' we were IMC. Traffic was idented on TCASII. We received a TA but no warning command. The flap problem was solved and the airplane landed with no further incidents. Upon landing, ATC informed us to call TRACON. The crew feels an unusual situation leading to a high workload led to the incident. Supplemental information from acn 353380: upon landing, ATC had me call the TRACON in dtw and they took my phone, address and certificate number.

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Original NASA ASRS Text

Title: ACR LTT ON APCH RWY 21R NOTED A DISCREPANCY ON THE FLAP INDICATOR AND ELECTED TO GAR. CLRED TO TRACK THE LOC AND MAINTAIN 3000 FT. OVERSHOT ALT WORKING ON FLAP PROB RESULTING IN TCASII RA. CTLR ADVISED TFC MAINTAINING 4000 FT 10 O'CLOCK. HAD NO WARNING COMMAND ON TCASII. SOLVED FLAP PROB AND LANDED. CONSULTED WITH ATC.

Narrative: WHILE EXECUTING AN ILS APCH TO RWY 21R AT DTW, A BEFORE LNDG CHKLIST WAS PERFORMED AFTER A GEAR DOWN SELECTION WAS MADE. DURING THE CHKLIST PROC A DISCREPANCY BTWN THE FLAP INDICATOR AND THE FLAPS SELECTED WAS DISCOVERED. A GAR WAS INITIATED. INSTRUCTIONS WERE TRACK LOC OUTBOUND, CLB AND MAINTAIN 3000 FT. THE ACFT CLBED TO APPROX 3400 FT BEFORE ALT WAS CORRECTED/CAPTURED. ATC INFORMED US TFC '10 O'CLOCK, 2 MI AT 4000 FT.' WE WERE IMC. TFC WAS IDENTED ON TCASII. WE RECEIVED A TA BUT NO WARNING COMMAND. THE FLAP PROB WAS SOLVED AND THE AIRPLANE LANDED WITH NO FURTHER INCIDENTS. UPON LNDG, ATC INFORMED US TO CALL TRACON. THE CREW FEELS AN UNUSUAL SIT LEADING TO A HIGH WORKLOAD LED TO THE INCIDENT. SUPPLEMENTAL INFO FROM ACN 353380: UPON LNDG, ATC HAD ME CALL THE TRACON IN DTW AND THEY TOOK MY PHONE, ADDRESS AND CERTIFICATE NUMBER.

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.