Narrative:

On approach to runway 27R; shortly after the automatic speed brake was armed; an amber automatic speed brake EICAS message appeared that did not go away; and the spoiler lever was placed in the down position. Near simultaneously or shortly after when the gear were extended; an amber gear doors EICAS message and doors caution light illuminated. The captain initiated a go around and the gear were retracted; with apparent normal indications (all lights and messages went away). We were switched to departure and vectored while we consulted the QRH and followed those procedures; which put us in position to approach again; but this time leaving the spoiler lever down until after landing (when it would be manually deployed); and observe the gear down airspeed restrs with the landing gear and land. On the second approach; this time to runway 27L; the right main gear light did not illuminate and a gear disagree EICAS message appeared. The captain initiated another go around; we left the gear handle down; and asked tower to observe our gear (they indicated that the right main gear appeared to be up; not down). We again went to departure for vectors while working the problem in the QRH. The captain declared an emergency at some point and we handled the problem according to the QRH (manually extending the gear); heard the right main gear come down and got a good green indication on it; with no EICAS message (except a gear door). We landed; manually extended the spoilers on landing; and stopped on the runway; where the gear were pinned. The captain taxied the airplane clear of the runway and maintenance towed us back to the gate.

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Original NASA ASRS Text

Title: B757 EICAS MESSAGES INDICATED ABNORMAL GEAR AND SPEED BRAKE CONDITIONS AND FLT CREW INITIATED GAR. ON SECOND APCH; RIGHT MAIN LNDG GEAR DID NOT EXTEND; AND ANOTHER GAR INITIATED. FLT CREW DECLARED EMER; PERFORMED MANUAL GEAR EXTENSION AND RETURNED FOR NORMAL LNDG.

Narrative: ON APCH TO RWY 27R; SHORTLY AFTER THE AUTO SPD BRAKE WAS ARMED; AN AMBER AUTO SPD BRAKE EICAS MESSAGE APPEARED THAT DID NOT GO AWAY; AND THE SPOILER LEVER WAS PLACED IN THE DOWN POS. NEAR SIMULTANEOUSLY OR SHORTLY AFTER WHEN THE GEAR WERE EXTENDED; AN AMBER GEAR DOORS EICAS MESSAGE AND DOORS CAUTION LIGHT ILLUMINATED. THE CAPT INITIATED A GAR AND THE GEAR WERE RETRACTED; WITH APPARENT NORMAL INDICATIONS (ALL LIGHTS AND MESSAGES WENT AWAY). WE WERE SWITCHED TO DEP AND VECTORED WHILE WE CONSULTED THE QRH AND FOLLOWED THOSE PROCS; WHICH PUT US IN POS TO APCH AGAIN; BUT THIS TIME LEAVING THE SPOILER LEVER DOWN UNTIL AFTER LNDG (WHEN IT WOULD BE MANUALLY DEPLOYED); AND OBSERVE THE GEAR DOWN AIRSPD RESTRS WITH THE LNDG GEAR AND LAND. ON THE SECOND APCH; THIS TIME TO RWY 27L; THE R MAIN GEAR LIGHT DID NOT ILLUMINATE AND A GEAR DISAGREE EICAS MESSAGE APPEARED. THE CAPT INITIATED ANOTHER GAR; WE LEFT THE GEAR HANDLE DOWN; AND ASKED TWR TO OBSERVE OUR GEAR (THEY INDICATED THAT THE R MAIN GEAR APPEARED TO BE UP; NOT DOWN). WE AGAIN WENT TO DEP FOR VECTORS WHILE WORKING THE PROB IN THE QRH. THE CAPT DECLARED AN EMER AT SOME POINT AND WE HANDLED THE PROB ACCORDING TO THE QRH (MANUALLY EXTENDING THE GEAR); HEARD THE R MAIN GEAR COME DOWN AND GOT A GOOD GREEN INDICATION ON IT; WITH NO EICAS MESSAGE (EXCEPT A GEAR DOOR). WE LANDED; MANUALLY EXTENDED THE SPOILERS ON LNDG; AND STOPPED ON THE RWY; WHERE THE GEAR WERE PINNED. THE CAPT TAXIED THE AIRPLANE CLR OF THE RWY AND MAINT TOWED US BACK TO THE GATE.

Data retrieved from NASA's ASRS site as of January 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.