(A1)15:28:06 (A2)15:28:54 (A1)A 100 3,000ft (A2) 170 A 170 17 35 (B1) B () 3nm 2,300ft (A3) 1 () 29 (B2)B (B3) B JA4060 ()5445 B 5459 5445 B 5445 (B4) 10nm B A46 10,000ft VFR 2966 (B4)15:34:26 B 2968 2966 B2966 260 3,000ft A 260 3,000ft (A4) 210 2nm 2,800ft A (A5) 290 A 290 3,000ft (A3)15:32:32 N (A8)15:34:33 (B3)15:33:35 (A4)15:32:55 (A7)15:34:12 (A5)15:33:14 (A6)A 200ft (A6)15:33:44 2,400 VFR 6 2nm 3,700ft 17 (A7) 2,000ft (A8) 330 35 0 1 2 3 4 5nm 0 2 4 6 8 10km - 26 - (B2)15:32:48 (B1)15:32:38 1 A A B B GCA
N 3,000ft 3,100ft 3,000ft 15:33:32 15:33::28 3,000ft 15:33:24 3,000ft 3,000ft 3,000ft 15:33:20 15:33:16 15:33:12 15:33:08 15:33:04 15:33:19.5 210m 280m 15:33:17.5 B 0 0.1 0.2 0.3 0.4 0.5 1nm 0 0.5 1 2km - 27 -
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N 170 3,000ft 17 35 6,000ft 3,000fy 18 36 19 4 6NM 01 260 2,500ft 3,000ft 17 2,500ft 35 0 1 2 3 4 5 10nm 0 5 10 20km - 30 -
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AB TWR GCA APP GCA : : 14:35:41 ~14:35:52 [Yokota.] [Request multiple GCA.] [Say squawk.] request? [Squawk one-five-five-seven, Charlie-one on the four. Which runway do you ground.] [That approach clear.] [Approved?] [Ya.] [Roger, ( ).] 15:25:42 B Chofu Tower, Juliet Alfa four-zero-six-zero. 15:25:46 TWR Juliet Alfa four-zero-six-zero, Chofu Tower, go ahead. 15:25:49 B Four-zero-six-zero, in front of AEROTEC, request taxi for departure instructions for local flight. 15:25:55 TWR Juliet Alfa four-zero-six-zero, wind zero-niner-zero at - 32 -
15:28:13 A Reading you five, Cosmo two-five. 15:26:01 B Runway one-seven, please. 15:26:03 TWR Four-zero-six-zero, roger. Taxi to runway one-seven via Alfa-four. QNH two-niner-six-three, go ahead. 15:26:13 B Runway one-seven via alfa-four, two-niner-six-three, four-zero-six-zero 15:26:50 A Iruma GCA, Cosmo two-five, now leaving one thousand for three thousand, runway heading. 15:26:55 GCA Cosmo two-five, Iruma GCA, radar contact, turn right heading one-zero-zero for vector to runway three-five final approach course, climb and maintain three thousand. 15:27:04 A Right one-zero-zero, three thousand, Cosmo two-five. 15:27:46 GCA Cosmo two-five, this will be a PAR approach to runway three-five, guidance limit five-niner-five feet. Say type of landing. 15:27:53 A Touch and go, then GCA, Cosmo two-five. 15:27:57 GCA Cosmo two-five, roger. Contact Iruma GCA two-five-eight decimal two. 15:28:01 A Two-five-eight-two, Cosmo two-five. 15:28:06 A Iruma GCA, Cosmo two-five, steady one-zero-zero, three thousand. 15:28:11 GCA Cosmo two-five, Iruma GCA, reading you five. How do you read? - 33 -
15:28:16 GCA Cosmo two-five, roger. After touch and go, climb instruction remain the same. 15:28:20 A Runway heading, three thousand, three-two-sevenfour, Cosmo two-five. 15:28:54 GCA Cosmo two-five, turn right heading one-seven-zero, downwind leg. 15:28:58 A Right one-seven-zero, Cosmo two-five. 15:29:30 B Chofu Tower, four-zero-six-zero, ready, runway one-seven. Request left turn departure, break to north-east. 15:29:36 TWR Four-zero-six-zero, left turn approved. Wind zero-niner-zero, three, cleared for take-off runway one-seven. 15:29:42 B Cleared for take-off, four-zero-six-zero. north-east, two thousand three hundred, 15:29:55 leaving. GCA Cosmo two-five, downwind leg, five miles east of airport. Perform landing check. Wind zero-seven-zero at five. 15:30:01 A Cosmo two-five 15:32:32 GCA Cosmo two-five, traffic, one o clock, correction, disregard. Turn right heading two-six-zero, maintain three thousand. 15:32:39 A Right two-six-zero, three thousand, Cosmo two-five. 15:32:38 B Chofu Tower, four-zero-six-zero, three mile -34-
15:32:43 TWR Juliet Alfa four-zero-six-zero, airborne Chofu zero ah two-niner. Frequency change approved, good day. 15:32:48 B Four-zero-six-zero, good day. 15:32:55 GCA Cosmo two-five, traffic, two-one-zero degrees, two miles, stationary, altitude readout two thousand eight hundred. 15:33:08 A Cosmo two-five, negative contact, in cloud. 15:33:14 GCA Cosmo two-five, turn right heading two-niner-zero, previous traffic under you. 15:33:22 A Right two-niner-zero, three thousand, Cosmo two-five. 15:33:35 B Yokota Approach, Juliet Alfa four-zero-six-zero. 15:33:42 APP Juliet Alfa four-zero-six-zero, Yokota Approach, squawk five-four-four-five and ident. three thousand seven hundred, climbing 15:33:47 B Five-four-five-nine ident, four-zero-six-zero. 15:33:50 APP Four-zero-six-zero, squawk fife-four-four-fife. 15:33:53 B Five-four-four-five ident. 15:34:26 30 APP 3 8 15:33:44 A Iruma GCA, Cosmo two-five, 200 15:33:50 GCA Cosmo two-five, 2,400 VFR six o clock, two miles, readout - 35 -
15:34:38 A Right three-three-zero, Cosmo two-five. 15:34:05 A Cosmo two-five. 15:34:12 GCA Cosmo two-five, clear of traffic. Descend and maintain two thousand. 15:34:16 A Two thousand, Cosmo two-five. 15:34:26 APP Juliet Alfa four-zero-six-zero, radar contact, one-zero miles east of Yokota. Say type of aircraft and altitude to maintain. 15:34:33 B Juliet Alfa four-zero-six-zero, we are Piper Alpa four six, Piper Malibu, ahh, will maintain flight around Chofu airport, max climb, ahh one-zero thousand. 15:34:43 APP Juliet Alfa four-zero-six-zero, roger, maintain VFR, Yokota altimeter two-niner-six-six. 15:34:48 B Two-niner-six-eight, four-zero-six-zero. 15:34:51 APP Four-zero-six-zero, altimeter two-niner-six-six. 15:34:54 B Sorry, two-niner-six-six, four-zero-six-zero 15:34:33 GCA Cosmo two-five, turn right heading three-three-zero, dogleg. - 36 -
ICAO PANS-ATM CHAPTER 1. DEFINITIONS Risk of collision: Safety not assured: No risk of collision: Risk not determined: The risk classification of an aircraft proximity in which; serious risk of collision has existed. The risk classification of an aircraft proximity in which; the safety of the aircraft may have been compromised. The risk classification of an aircraft proximity in which; no risk of collision has existed. The risk classification of an aircraft proximity in which; insufficient information was available to determine the risk involved, or inconclusive or conflicting evidence precluded such determination. 16.3.2-37 -