<< >> NASA ASRS Report 524140, September 2001

An improperly set altitude warning system leads to an altitude overshoot followed a short time after by a landing without clearance.

Attributes
ACN	524140
Time
Date	200109
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 9500 flight time type : 850
ASRS Report	524140
Events
Anomaly	altitude deviation : overshoot incursion : landing without clearance non adherence : clearance
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared to 11000 ft at the providence VOR, set it 10000 ft. Not verified because captain was getting ATIS. Center called as we approached 10600 ft. Then while landing at runway 4R boston approach instructed us to contact tower marker inbound. We were busy and forgot, then landed without clearance. Both were uneventful.

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Original NASA ASRS Text

Title: AN IMPROPERLY SET ALT WARNING SYS LEADS TO AN ALT OVERSHOOT FOLLOWED A SHORT TIME AFTER BY A LNDG WITHOUT CLRNC.

Narrative: CLRED TO 11000 FT AT THE PROVIDENCE VOR, SET IT 10000 FT. NOT VERIFIED BECAUSE CAPT WAS GETTING ATIS. CTR CALLED AS WE APCHED 10600 FT. THEN WHILE LNDG AT RWY 4R BOSTON APCH INSTRUCTED US TO CONTACT TWR MARKER INBOUND. WE WERE BUSY AND FORGOT, THEN LANDED WITHOUT CLRNC. BOTH WERE UNEVENTFUL.

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.