What was found
NR 1 LED LOCKED UP & WOULD NOT EXTEND FOR 10 MINUTES ON FLAP EXTENSION. NR 4 LED INTRANSIT FOR 15 MINUTES ON FLAP EXTENSION. VERIFIED NR 1 LED IS AN INDICATION LIGHT, TRANSFERED TO DMI 6127 IAW ENA MEL 27-6, CAT -C-, SPECIAL PROCEDURES 27-6 COMPLIED WITH. PLACARDS INSTALLED. CLEANED DEBRI FROM NR 4 LED. PERFORMED OPS CHK IAW B727 M/M 27-82-1. NO DEFECTS NOTED. R & R NR 1 SLAT ACTUATOR IAW B727 MM CHAPTER 27-81-32 NR 1 SLAT AND LED OPS CHECKS NORMAL, ACTION CLEARS DMI 6127, PLACARDS REMOVED. VISUALLY VERIFIED NR 1 LED EXTENDS & RETRACTS NORMALLY IAW B727 MM CHAPTER 27-81-0. INDICATOR FOUND TO BE AT FAULT. R & R NR 1 SLAT POSITION SWITCH IAW B727 MM CHAPTER 27-82-11. OPS CHECKS NORMAL. (STATUS:SUPP/CLOSED)