<< >> NASA ASRS Report 378570, August 1997

EMB120 first officer allows aircraft to drift down 300 ft before PIC takes aircraft back to assigned altitude. PIC then places autoplt on. Aircraft was on approach to mco, on localizer course at 4000 ft.

Attributes
ACN	378570
Time
Date	199708
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mco
State Reference	FL
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mco
Operator	common carrier : air carrier
Make Model Name	Xingu EMB-121 All Series
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	approach : straight in arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 5000 flight time type : 2300
ASRS Report	378570
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : became reoriented other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Vectored to intercept runway 17 localizer, maintain 4000 ft. First officer, PF, descended to 3600 ft. Captain (I) took controls and climbed back to 4000 ft. Placed autoplt 'on.'

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Original NASA ASRS Text

Title: EMB120 FO ALLOWS ACFT TO DRIFT DOWN 300 FT BEFORE PIC TAKES ACFT BACK TO ASSIGNED ALT. PIC THEN PLACES AUTOPLT ON. ACFT WAS ON APCH TO MCO, ON LOC COURSE AT 4000 FT.

Narrative: VECTORED TO INTERCEPT RWY 17 LOC, MAINTAIN 4000 FT. FO, PF, DSNDED TO 3600 FT. CAPT (I) TOOK CTLS AND CLBED BACK TO 4000 FT. PLACED AUTOPLT 'ON.'

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.