SUGAP

The Board's full report is available at http://www.ntsb.gov/publictn/publictn.htm.

On October 31, 1999, about 0152 eastern standard time (EST), EgyptAir flight 990, a Boeing 767-366ER (767), SU-GAP, crashed into the Atlantic Ocean about 60 miles south of Nantucket, Massachusetts. EgyptAir flight 990 was being operated under the provisions of Egyptian Civil Aviation Regulations (ECAR) Part 121 and U.S. 14 Code of Federal Regulations Part 129 as a scheduled, international flight from John F. Kennedy International Airport (JFK), New York, New York, to Cairo International Airport, Cairo, Egypt. The flight departed JFK about 0120, with 4 flight crewmembers, 10 flight attendants, and 203 passengers on board. All 217 people on board were killed, and the airplane was destroyed. Visual meteorological conditions prevailed for the flight, which operated on an instrument flight rules (IFR) flight plan.

On October 30, 1999, the accident airplane departed Los Angeles International Airport (LAX), Los Angeles, California, as EgyptAir flight 990, destined for Cairo, with a scheduled intermediate stop at JFK. EgyptAir flight 990 landed at JFK about 2348 eastern daylight time (EDT) and arrived at the gate about 0010 EDT on October 31, 1999.

Because of the 10-hour scheduled en route flight time from JFK to Cairo, ECAR Part 121, Subpart Q, required that the accident flight have two designated flight crews (each crew consisting of a captain and first officer). According to the EgyptAir flight dispatcher who accompanied the two accident flight crews from their hotel in New York City to the airport, they departed the hotel about 2330 EDT on October 30 and arrived at JFK about 40 minutes later, about the same time as the airplane, inbound from LAX, arrived at the terminal gate.

According to air traffic control (ATC) records, by 0101, the pilots of EgyptAir flight 990 had requested, received, and correctly read back an IFR clearance from ATC. ATC transcripts further indicated that between about 0112 and 0116, air traffic controllers issued a series of taxi instructions to EgyptAir flight 990. At 0117:56, the pilots advised the local controller that they were holding short of the departure runway (runway 22 right [22R]) and that they were ready for takeoff. The local controller instructed EgyptAir flight 990 to taxi into position and hold on runway 22R and, at 0119:22, cleared the accident flight for takeoff. The first officer acknowledged the takeoff clearance, and, about 0120, the airplane lifted off runway 22R.

Shortly after liftoff, the pilots of EgyptAir flight 990 contacted New York Terminal Radar Approach (and departure) Control (TRACON). New York TRACON issued a series of climb instructions and, at 0126:04, instructed the flight to climb to flight level (FL) 230 and contact New York Air Route Traffic Control Center (ARTCC). According to ATC and cockpit voice recorder (CVR) records, at 0135:52, New York ARTCC instructed EgyptAir flight 990 to climb to FL 330 and proceed directly to DOVEY intersection.

According to the CVR transcript, about 0140 (20 minutes after takeoff), as the airplane was climbing to its assigned altitude, the relief first officer suggested that he relieve the command first officer at the controls, stating, "I'm not going to sleep at all. I might come and sit for two hours, and then…," indicating that he wanted to fly his portion of the trip at that time. The command first officer stated, "But I…I slept. I slept," and the relief first officer stated, "You mean you're not going to get up? You will get up, go and get some rest and come back." The command first officer then stated, "You should have told me, you should have told me this, Captain [relief first officer's surname]. You should have said, '[command first officer's first name]…I will work first.' Just leave me a message. Now I am going to sit beside you. I mean, now, I'll sit by you on the seat. I am not sleepy. Take your time sleeping and when you wake up, whenever you wake up, come back, Captain."

The relief first officer then stated, "I'll come either way…come work the last few hours, and that's all." The command first officer responded, "No…that's not the point, it's not like that, if you want to sit here, there's no problem." The relief first officer stated, "I'll come back to you, I mean, I will eat and come back, all right?" The command first officer responded, "Fine, look here, sir. Why don't you come so that…you want them to bring your dinner here, and I'll go to sleep [in the cabin]?" The relief first officer stated, "That's good." The command first officer then stated to the command captain, "With your permission, Captain?"

At 0140:56, the CVR recorded the sound of the cockpit door operating. About 1 second later, the command first officer stated in a soft voice, "Do you see how he does whatever he pleases?" At 0141:09, the command first officer stated, "No, he does whatever he pleases. Some days he doesn't work at all." At 0141:51, the CVR again recorded the sound of the cockpit door operating. Sounds recorded during the next minute by the CVR (including a whirring sound similar to an electric seat motor operating, a clicking sound similar to a seat belt operating, and some conversation) indicated that the command first officer vacated and the relief first officer moved into the first officer's seat.

Flight data recorder (FDR) and radar data indicated that the airplane leveled at its assigned altitude of FL 330 at 0144:27. At 0147:19, New York ARTCC instructed EgyptAir flight 990 to change radio frequencies for better communication coverage. The command captain of EgyptAir flight 990 acknowledged and reported on the new frequency at 0147:39.

At 0147:55, the relief first officer stated, "Look, here's the new first officer's pen. Give it to him please. God spare you," and, at 0147:58, someone responded, "yeah." At 0148:03, the command captain stated, "Excuse me, [nickname for relief first officer], while I take a quick trip to the toilet…before it gets crowded. While they are eating, and I'll be back to you." While the command captain was speaking, the relief first officer responded, "Go ahead please," and the CVR recorded the sound of an electric seat motor as the captain maneuvered to leave his seat and the cockpit. At 0148:18.55, the CVR recorded a sound similar to the cockpit door operating.

At 0148:30, about 11 seconds after the captain left the cockpit, the CVR recorded an unintelligible comment. Ten seconds later (about 0148:40), the relief first officer stated quietly, "I rely on God." There were no sounds or events recorded by the flight recorders that would indicate that an airplane anomaly or other unusual circumstance preceded the relief first officer's statement, "I rely on God."

At 0149:18, the CVR recorded the sound of an electric seat motor. FDR data indicated that, at 0149:45 (27 seconds later), the autopilot was disconnected. Aside from the very slight movement of both elevators (the left elevator moved from about a 0.7 to about a 0.5 degree nose-up deflection, and the right elevator moved from about a 0.35 degree nose?up to about a 0.3 degree nose-down deflection) and the airplane's corresponding slight nose-down pitch change, which were recorded within the first second after autopilot disconnect, and a very slow (0.5 degree per second) left roll rate, the airplane remained essentially in level flight about FL 330 for about 8 seconds after the autopilot was disconnected. At 0149:48, the relief first officer again stated quietly, "I rely on God." At 0149:53, the throttle levers were moved from their cruise power setting to idle, and, at 0149:54, the FDR recorded an abrupt nose-down elevator movement and a very slight movement of the inboard ailerons. Subsequently, the airplane began to rapidly pitch nose down and descend.

Between 0149:57 and 0150:05, the relief first officer quietly repeated, "I rely on God," seven additional times. During this time, as a result of the nose-down elevator movement, the airplane's load factor decreased from about 1 to about 0.2 G. Between 0150:04 and 0150:05 (about 10 to 11 seconds after the initial nose-down movement of the elevators), the FDR recorded additional, slightly larger inboard aileron movements, and the elevators started moving further in the nose-down direction. Immediately after the FDR recorded the increased nose?down elevator movement, the CVR recorded the sounds of the captain asking loudly (beginning at 0150:06), "What's happening? What's happening?," as he returned to the cockpit.

The airplane's load factor decreased further as a result of the increased nose-down elevator deflection, reaching negative G loads (about -0.2 G) between 0150:06 and 0150:07. During this time (and while the captain was still speaking [at 0150:07]), the relief first officer stated for the tenth time, "I rely on God." Additionally, the CVR transcript indicated that beginning at 0150:07, the CVR recorded the "sound of numerous thumps and clinks," which continued for about 15 seconds.

According to the CVR and FDR data, at 0150:08, as the airplane exceeded its maximum operating airspeed (0.86 Mach), a master warning alarm began to sound. (The warning continued until the FDR and CVR stopped recording at 0150:36.64 and 0150:38.47, respectively.) Also at 0150:08, the relief first officer stated quietly for the eleventh and final time, "I rely on God," and the captain repeated his question, "What's happening?" At 0150:15, the captain again asked, "What's happening, [relief first officer's first name]? What's happening?" At this time, as the airplane was descending through about 27,300 feet mean sea level (msl), the FDR recorded both elevator surfaces beginning to move in the nose-up direction. Shortly thereafter, the airplane's rate of descent began to decrease. At 0150:21, about 6 seconds after the...