Small aircraft crossing final approach course forces medium large transport to deviate to avoid.

Attributes
ACN	158429
Time
Date	199009
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mlb
State Reference	FL
Altitude	msl bound lower : 800 msl bound upper : 800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mlb
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	other
Flight Plan	VFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : private
Experience	flight time last 90 days : 5 flight time total : 146 flight time type : 140
ASRS Report	158429
Person 2
Affiliation	Other
Function	instruction : instructor oversight : pic
Qualification	pilot : cfi pilot : commercial
Events
Anomaly	aircraft equipment problem : critical conflict : airborne less severe non adherence : required legal separation non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 4500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We did not receive a call that there was a jet on close final (3 mi). When talking to tower after, they said that there was a stuck microphone and that the medium large transport B should have called 3 min before they did. They also said that there was a lot going on. Callback conversation with reporter revealed the following information. Reporter thinks they were cleared to enter downwind for runway 22. He was under the hood and his instrument was giving him vectors. They were north or nebnd and crossing the final approach course of runway 27L east of the runway when they saw the medium large transport maneuvering to land on runway 27L. It looked like the medium large transport had maneuvered south of the approach course to get behind them. There were no instructions from the tower due to an apparent stuck microphone on frequency. The medium large transport then landed on runway 27L and they proceeded to land on runway 22. It appears that the late change to tower frequency by the medium large transport exacerbated the situation.

Original NASA ASRS Text

Title: SMA CROSSING FINAL APCH COURSE FORCES MLG TO DEVIATE TO AVOID.

Narrative: WE DID NOT RECEIVE A CALL THAT THERE WAS A JET ON CLOSE FINAL (3 MI). WHEN TALKING TO TWR AFTER, THEY SAID THAT THERE WAS A STUCK MIC AND THAT THE MLG B SHOULD HAVE CALLED 3 MIN BEFORE THEY DID. THEY ALSO SAID THAT THERE WAS A LOT GOING ON. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. RPTR THINKS THEY WERE CLRED TO ENTER DOWNWIND FOR RWY 22. HE WAS UNDER THE HOOD AND HIS INSTR WAS GIVING HIM VECTORS. THEY WERE N OR NEBND AND XING THE FINAL APCH COURSE OF RWY 27L E OF THE RWY WHEN THEY SAW THE MLG MANEUVERING TO LAND ON RWY 27L. IT LOOKED LIKE THE MLG HAD MANEUVERED S OF THE APCH COURSE TO GET BEHIND THEM. THERE WERE NO INSTRUCTIONS FROM THE TWR DUE TO AN APPARENT STUCK MIC ON FREQ. THE MLG THEN LANDED ON RWY 27L AND THEY PROCEEDED TO LAND ON RWY 22. IT APPEARS THAT THE LATE CHANGE TO TWR FREQ BY THE MLG EXACERBATED THE SITUATION.

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.