SF340 radio communication problem unable to establish radio contact leads to a landing without clear...

Attributes
ACN	509890
Time
Date	200104
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pah.airport
State Reference	KY
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Saab-Scania Undifferentiated or Other Model
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 70 flight time total : 5200 flight time type : 800
ASRS Report	509890
Events
Anomaly	aircraft equipment problem : less severe incursion : landing without clearance maintenance problem : improper maintenance maintenance problem : non compliance with mel maintenance problem : improper documentation non adherence : far non adherence : clearance non adherence : company policies
Resolutory Action	none taken : unable none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

On an IFR flight through pah en route to mem, developed radio anomaly with loud squeal feedback. After departing, attempted observer's intercom/headset and emergency bypass on audio control panel, then removed first officer headset/boom from right side communication jack. Communications re-established and used handheld microphone for remainder of flight to pah until cleared for visual approach within 10 mi of airport. Unable to contact pah tower initially, then tried headset/boom on captain's side with normal operation. Pah tower instructed me to report 2 mi final, which I acknowledged. I subsequently reported on final and heard feedback, then attempted call again at approximately 2 mi final, but heard no response. Elected to continue approach and landing looking for light signal since I could not confirm landing clearance. I treated landing as if NORDO at controled field (class D airspace). After landing and clear of runway 22, took off headset/boom and tried hand microphone to report clear of runway and to taxi. Tower acknowledged this transmission, but said they did not hear call at 2 mi final. Radio problems persisted when departing pah, and found first officer headset/boom was reconnected. Departed pah using hand microphone and after first officer headset/boom was again removed. Arrived at mem without further incident.

Original NASA ASRS Text

Title: SF340 RADIO COM PROB UNABLE TO ESTABLISH RADIO CONTACT LEADS TO A LNDG WITHOUT CLRNC AT PAH, KY.

Narrative: ON AN IFR FLT THROUGH PAH ENRTE TO MEM, DEVELOPED RADIO ANOMALY WITH LOUD SQUEAL FEEDBACK. AFTER DEPARTING, ATTEMPTED OBSERVER'S INTERCOM/HEADSET AND EMER BYPASS ON AUDIO CTL PANEL, THEN REMOVED FO HEADSET/BOOM FROM R SIDE COM JACK. COMS RE-ESTABLISHED AND USED HANDHELD MIKE FOR REMAINDER OF FLT TO PAH UNTIL CLRED FOR VISUAL APCH WITHIN 10 MI OF ARPT. UNABLE TO CONTACT PAH TWR INITIALLY, THEN TRIED HEADSET/BOOM ON CAPT'S SIDE WITH NORMAL OP. PAH TWR INSTRUCTED ME TO RPT 2 MI FINAL, WHICH I ACKNOWLEDGED. I SUBSEQUENTLY RPTED ON FINAL AND HEARD FEEDBACK, THEN ATTEMPTED CALL AGAIN AT APPROX 2 MI FINAL, BUT HEARD NO RESPONSE. ELECTED TO CONTINUE APCH AND LNDG LOOKING FOR LIGHT SIGNAL SINCE I COULD NOT CONFIRM LNDG CLRNC. I TREATED LNDG AS IF NORDO AT CTLED FIELD (CLASS D AIRSPACE). AFTER LNDG AND CLR OF RWY 22, TOOK OFF HEADSET/BOOM AND TRIED HAND MIKE TO RPT CLR OF RWY AND TO TAXI. TWR ACKNOWLEDGED THIS XMISSION, BUT SAID THEY DID NOT HEAR CALL AT 2 MI FINAL. RADIO PROBS PERSISTED WHEN DEPARTING PAH, AND FOUND FO HEADSET/BOOM WAS RECONNECTED. DEPARTED PAH USING HAND MIKE AND AFTER FO HEADSET/BOOM WAS AGAIN REMOVED. ARRIVED AT MEM WITHOUT FURTHER INCIDENT.

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.

SF340 radio communication problem unable to establish radio contact leads to a landing without clearance at pah, ky.