As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFLIGHT RDU-LHR. NO ANTI-ICE ON LT ENGINE GOING INTO ICY CONDITIONS. EMERGENCY DECLARED LANDED JFK WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND PRV MUSCLE LINE LEAKING. RESEATED TIGHTENED LINE. SYSTEM GROUND CHECK NORMAL OPERATION.