Narrative:

Prior to takeoff we had a write-up about the forward cargo door light. Maintenance needed to visually check it after closing. We thought all was checked; all door lights were out; so we pushed. After pushback; maintenance said they needed to do another check on the door. We went back to gate and check was completed and off we went. Normal takeoff and climb out. At initial cruise altitude of FL320 the cargo doors lights and forward cargo door EICAS came on. Lots of thunderstorms in area and we were over the atlantic. Pressurization was normal. Because of these factors; we elected to stay high and talk with maintenance control. Conference call with maintenance control and dispatch told us there was a conflict between flight manual and MEL. All agreed it best to return to ZZZ. Stayed high until safely past the storms. Dumped fuel 200 mi south of ZZZ1. On arrival at 10000 ft; we lost VHF communication. Tried both radios from all 3 crew position and various frequencys. Couldn't get anyone. After zzzzz intersection; we made an initial turn toward landing runway. With no communication; we decided to get back on arrival to give us more time to talk to someone. We talked to tower briefly and then talked with approach and found out they were changing runways. Got vector for visual and lost communication again. Got landing clearance from ZZZ ground at 500 ft. Supplemental information from acn 797533: dispatched with forward cargo door electric motor inoperative. Maintenance had trouble verifying it closed; but finally did after a return to the gate after pushback. Takeoff was normal with all indications normal. Reaching cruise altitude of FL320; forward door EICAS and cargo doors overhead lights came on.

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Original NASA ASRS Text

Title: B767 FLT CREW REPORTS CARGO DOOR WARNING AT FL320 AND RETURN TO DEPARTURE ARPT. INTERMITTENT COM FAILURES OCCUR DURING ARRIVAL AND UNEVENTFUL LANDING.

Narrative: PRIOR TO TKOF WE HAD A WRITE-UP ABOUT THE FORWARD CARGO DOOR LIGHT. MAINT NEEDED TO VISUALLY CHK IT AFTER CLOSING. WE THOUGHT ALL WAS CHKED; ALL DOOR LIGHTS WERE OUT; SO WE PUSHED. AFTER PUSHBACK; MAINT SAID THEY NEEDED TO DO ANOTHER CHK ON THE DOOR. WE WENT BACK TO GATE AND CHK WAS COMPLETED AND OFF WE WENT. NORMAL TKOF AND CLBOUT. AT INITIAL CRUISE ALT OF FL320 THE CARGO DOORS LIGHTS AND FORWARD CARGO DOOR EICAS CAME ON. LOTS OF TSTMS IN AREA AND WE WERE OVER THE ATLANTIC. PRESSURIZATION WAS NORMAL. BECAUSE OF THESE FACTORS; WE ELECTED TO STAY HIGH AND TALK WITH MAINT CTL. CONFERENCE CALL WITH MAINT CTL AND DISPATCH TOLD US THERE WAS A CONFLICT BTWN FLT MANUAL AND MEL. ALL AGREED IT BEST TO RETURN TO ZZZ. STAYED HIGH UNTIL SAFELY PAST THE STORMS. DUMPED FUEL 200 MI S OF ZZZ1. ON ARR AT 10000 FT; WE LOST VHF COM. TRIED BOTH RADIOS FROM ALL 3 CREW POS AND VARIOUS FREQS. COULDN'T GET ANYONE. AFTER ZZZZZ INTXN; WE MADE AN INITIAL TURN TOWARD LNDG RWY. WITH NO COM; WE DECIDED TO GET BACK ON ARR TO GIVE US MORE TIME TO TALK TO SOMEONE. WE TALKED TO TWR BRIEFLY AND THEN TALKED WITH APCH AND FOUND OUT THEY WERE CHANGING RWYS. GOT VECTOR FOR VISUAL AND LOST COM AGAIN. GOT LNDG CLRNC FROM ZZZ GND AT 500 FT. SUPPLEMENTAL INFO FROM ACN 797533: DISPATCHED WITH FORWARD CARGO DOOR ELECTRIC MOTOR INOP. MAINT HAD TROUBLE VERIFYING IT CLOSED; BUT FINALLY DID AFTER A RETURN TO THE GATE AFTER PUSHBACK. TKOF WAS NORMAL WITH ALL INDICATIONS NORMAL. REACHING CRUISE ALT OF FL320; FORWARD DOOR EICAS AND CARGO DOORS OVERHEAD LIGHTS CAME ON.

Data retrieved from NASA's ASRS site as of May 2009 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.