Cracking noise from front seat in the case of heavy load on backrest - AF91.10-P-1021M

MODEL 220.### ## up to 316761 

Damage code	Cause	Remedy
91 013 36	Cracking in the case of heavy load on backrest.	1 Raise front seat (1).
		2 Move front seat (1) forward.
		3 Remove left trim.
		4 Tighten nut (2).
			*BA91.10-P-1005-01H
		5 Slacken nut (2) as per specified torque angle.
			*BA91.10-P-1005-01H
		6 Tighten nut (3).
			*BA91.10-P-1005-01H
		7 Slacken nut (3) as per specified torque angle.
			*BA91.10-P-1005-01H
		8 Install left trim.
		9 Move front seat (1) back to initial position.

Fig 1: Identifying Front Seat And Nut

FRONT SEATS

Number	Designation				Model 220 up to 30.11.01
BA91.10-P-1005-01H		M8	1st stage	Nm	8
			2nd stage	∠°	-30
		M10	1st stage	Nm	26
			2nd stage	∠°	-20