Tuesday, 5 July 2011:
F-15J. #879 [72-8879].
204th Hikoutai, 83rd Koukuutai, JASDF, based at Naha AB, Okinawa Prefecture.

9:59, took off, at Naha AB. Leader of flight of four, and not armed.

10:33, during air combat training, above East China Sea, 180 km northwest of Naha City, pilot declared emergency.
140 km northwest of Iejima Island lighthouse.

10:35, disappeared from radar, and crashed into sea.
10:46, in crash area, wingmen spotted debris.

11:12 and after, JCG [11th Region] spotted tail fin.
11:39 and after, spotted part of horizontal stabiliser, speed brake, and other debris.

Pilot was Major Kawakubo Yuuji (37).
Instructor pilot, and has total 3,000 hours. 1,700 hours with F-15.

Aircraft accepted in 1987, and has no accident history.
Ground display at America Fest 2011, at Kadena AB, Okinawa Prefecture, on 1-2 July 2011.

JDS Haruyuki recovered tail fin, and confirmed serial number.

http://www.mod.go.jp/asdf/pr_report/houdou/H23/0705-1.html

JASDF official press release.

http://community.travel.yahoo.co.jp/mymemo/ishigakijima-ryo/blog/122898.html
http://kamikirimushi.air-nifty.com/blog/2010/01/post-f259.html
http://photozou.jp/photo/photo_only/213633/32419688

Photos of #879 [72-8879].

http://wpedia.goo.ne.jp/enwiki/125_Squadron,_Republic_of_Singapore_Air_Force#Unit_History

“Based at Sembawang Air Base, the Super Pumas brought to the RSAF a new dimension in its operational capabilities.
Prior to the acquisition of the CH-47 Chinook, SAF relied on the squadron’s Super Puma helicopters to transport its light vehicles and troops around on various detachments and training grounds.
125 Squadron has only had one major accident involving loss of life-taking place overseas.
In 1994, where 125 Squadron’s then Commanding Officer Major S. Thanabalan, as well as Captain John Wong and their crew were killed in an air crash during deployment on detachment to Taiwan for a training exercise[2], and the fleet was grounded[3].
In 2008, a Super Puma crashed in SBAB’s compound, with no loss of life, in the lead up to National Day Parade duties[4].”

Possibly this “S. Thanabalan”, because his DOD matches:

http://archive.wikitree.org/index.php?title=S.Thanabalan

“S. Thanabalan

Birth: 9 November 1952 in Singapore, Singapore

Death: 16 April 1994 in Kaoshiung [sic], Taiwan

Gender (at birth): male

Children:

– Stephen Charles Liang Wen Thanabalan
– Matthew John Thanabalan”